Performance on XMLTYPE
Trying to issue simple existsNode & extract queries on a table with 160K XML docs (unstructured) and the performance is an issue. Without an index its 2 minutes with a CTXXPATH index its 2 minutes and even with a function based index with the CTXPATH index its still two minutes! I did check the plan and saw the index being used however performance did not go well. Any ideas?
Running 9.2.0.4 on Solaris 64bit
Thanks
What %age of the documents does the existsNode return. With unstructured storeage each docuement will need to be parsed and a DOM built to get the results of extract. Also did you sync the index after inserting the records. In general you should only use unstructured storage when queries will result in a small number of small documents being processed.
Similar Messages
-
How to boost performance on XMLType column
Hello everyone,
I've a serious question on improving the performance of XMLType Column. In fact, I've created view on top on XMLType column and found out that the retreival time is quite unexceptal. Although I've applied indices on those element seems no help. One note is that the XMLType column is unstructured.. Does this could be the reason?
My question is that does the indices only apply to structured docs?
Appreciated your advice. Thanks.Please post the question on XML DB forum
-
[9i] poor performance with XMLType.transform
Hello,
I've got a problem with the Oracle function XMLType.transform.
When I try to apply a XSL to a big XML, it is very very slow, and it evens consumes all the CPU, and other users are not able to work until the processing is complete...
So I was wondering if my XSL was corrupted, but it does not seem so, because when i apply it with Internet Explorer (by just double-clicking on the .xml), it is immediately applied. I've also even tried with oraxsl, and the processing is quick and good.
So, i tried to use XDB, but it does not work, maybe I should upgrade to a newer version of XDB?
Please find the ZIP file here :
http://perso.modulonet.fr/~tleoutre/Oracle/samples.zip
Please find in this file :
1) The XSL file k_xsl.xsl
2) The "big" XML file big_xml.xml
Here you can try to apply the XSL on the XML with Internet Explorer : processing is very quick...
3) The batch file transform.bat
Here you can launch it, it calls oraxsl, and produces a result very quickly...
4) The SQL file test_xsl_with_xmltype_transform.sql.
You can try to launch it... First, it applies the same XSL with a little XML, and it's OK... And then, it applies the XSL to the same big XML as in point 1), and then, it takes a lot of time and CPU...
5) The SQL file test_xsl_with_xdb_1.sql ...
On my server, it fails... So I tried to change the XSL in the next point :
6) The SQL file test_xsl_with_xdb_2.sql with a "cleaned" XSL...
And then, it fails with exactly the same problem as in :
TransformerConfigurationException (Unknown expression at EOF: *|/.)
Any help would be greatly appreciated!
Thank you!
P.S. : Sorry for my bad english, I'm a French man :-)This is what I see...
Your tests are measuring the wrong thing. You are measuring the time to create the sample documents, which is being done very innefficiently, as well
as the time take to do the transform.
Below is the correct way to get mesasurements for each task..
Here's what I see on a PIV 2.4Ghz with 10.2.0.2.0 and 2GB of RAM
Fragments SourceSize TargetSize createSource Parse Transform
50 28014 104550 00:00:00.04 00:00:00.04 00:00:00.12
100 55964 209100 00:00:00.03 00:00:00.05 00:00:00.23
500 279564 1045500 00:00:00.16 00:00:00.23 00:00:01.76
1000 559064 2091000 00:00:00.28 00:00:00.28 00:00:06.04
2000 1118064 4182000 00:00:00.34 00:00:00.42 00:00:24.43
5000 2795064 10455000 00:00:00.87 00:00:02.02 00:03:19.02I think this clearly shows the pattern.
Of course what this testing really shows is that you've clearly missed the point of performing XSLT transformation inside the database.
The idea behind database based transformation is to optimize XSLT processing by
(1), not having to parse the XML and build a DOM tree before commencing the XSLT processing. In this example this is not possible since the
XML is being created from a CLOB based XMLType, not a schema based XMLType.
(2) Leveraging the Lazily Loaded Virtual DOM when doing sparse transformation ( A Sparse transformation is one where there are large parts of the
source document that are not required to create the target document. Again in this case the XSL requires you to walk all the nodes to generate the
required output.
If is necessary to process all of the nodes in the source document to generate the entire output it probably makes more sense to use a midtier XSL engine.
Here's the code I used to generate the numbers in the above example
BTW in terms of BIG XML we've successully processed 12G documents with Schema Based Storage...So nothing you have hear comes any where our defintion of big.- 1 with Oracle 10g Express on Linux
Also, please remember that 9.2.0.1.0 is not a supported release for any XML DB related features.
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:44:59 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool createDocument.log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> create or replace directory &1 as '&3'
2 /
old 1: create or replace directory &1 as '&3'
new 1: create or replace directory SCOTT as '/home/mdrake/bugs/xslTest'
Directory created.
SQL> drop table source_data_table
2 /
Table dropped.
SQL> create table source_data_table
2 (
3 fragCount number,
4 xml_text clob,
5 xml xmlType,
6 result clob
7 )
8 /
Table created.
SQL> create or replace procedure createDocument(fragmentCount number)
2 as
3 fragmentText clob :=
4 '<AFL LIGNUM="1999">
5 <mat>20000001683</mat>
6 <name>DOE</name>
7 <firstname>JOHN</firstname>
8 <name2>JACK</name2>
9 <SEX>MALE</SEX>
10 <birthday>1970-05-06</birthday>
11 <salary>5236</salary>
12 <code1>5</code1>
13 <code2>6</code2>
14 <code3>7</code3>
15 <date>2006-05-06</date>
16 <dsp>8.665</dsp>
17 <dsp_2000>455.45</dsp_2000>
18 <darr04>5.3</darr04>
19 <darvap04>6</darvap04>
20 <rcrr>8</rcrr>
21 <rcrvap>9</rcrvap>
22 <rcrvav>10</rcrvav>
23 <rinet>11.231</rinet>
24 <rmrr>12</rmrr>
25 <rmrvap>14</rmrvap>
26 <ro>15</ro>
27 <rr>189</rr>
28 <date2>2004-05-09</date2>
29 </AFL>';
30
31 xmlText CLOB;
32
33 begin
34 dbms_lob.createTemporary(xmlText,true,DBMS_LOB.CALL);
35 dbms_lob.write(xmlText,5,1,'<PRE>');
36 for i in 1..fragmentCount loop
37 dbms_lob.append(xmlText,fragmentText);
38 end loop;
39 dbms_lob.append(xmlText,xmlType('<STA><COD>TER</COD><MSG>Op?ation R?ssie</MSG></STA>').getClobVal());
40 dbms_lob.append(xmlText,'</PRE>');
41 insert into source_data_table (fragCount,xml_text) values (fragmentCount, xmlText);
42 commit;
43 dbms_lob.freeTemporary(xmlText);
44 end;
45 /
Procedure created.
SQL> show errors
No errors.
SQL> --
SQL> set timing on
SQL> --
SQL> call createDocument(50)
2 /
Call completed.
Elapsed: 00:00:00.04
SQL> call createDocument(100)
2 /
Call completed.
Elapsed: 00:00:00.03
SQL> call createDocument(500)
2 /
Call completed.
Elapsed: 00:00:00.16
SQL> call createDocument(1000)
2 /
Call completed.
Elapsed: 00:00:00.28
SQL> call createDocument(2000)
2 /
Call completed.
Elapsed: 00:00:00.34
SQL> call createDocument(5000)
2 /
Call completed.
Elapsed: 00:00:00.87
SQL> select fragCount dbms_lob.getLength(xmlText)
2 from sample_data_table
3 /
select fragCount dbms_lob.getLength(xmlText)
ERROR at line 1:
ORA-00923: FROM keyword not found where expected
Elapsed: 00:00:00.00
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:45:01 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool testcase_&3..log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> --
SQL> update source_data_table
2 set xml = xmltype(xml_text)
3 where fragCount = &3
4 /
old 3: where fragCount = &3
new 3: where fragCount = 50
1 row updated.
Elapsed: 00:00:00.04
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.01
SQL> update source_data_table
2 set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
3 where fragCount = &3
4 /
old 2: set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
new 2: set result = xmltransform(xml,xmltype(bfilename(USER,'k_xsl.xsl'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
old 3: where fragCount = &3
new 3: where fragCount = 50
1 row updated.
Elapsed: 00:00:00.12
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.01
SQL> select fragCount, dbms_lob.getLength(xml_text),dbms_lob.getLength(result)
2 from source_data_table
3 /
FRAGCOUNT DBMS_LOB.GETLENGTH(XML_TEXT) DBMS_LOB.GETLENGTH(RESULT)
50 28014 104550
100 55964
500 279564
1000 559064
2000 1118064
5000 2795064
6 rows selected.
Elapsed: 00:00:00.01
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:45:02 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool testcase_&3..log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> --
SQL> update source_data_table
2 set xml = xmltype(xml_text)
3 where fragCount = &3
4 /
old 3: where fragCount = &3
new 3: where fragCount = 100
1 row updated.
Elapsed: 00:00:00.05
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.01
SQL> update source_data_table
2 set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
3 where fragCount = &3
4 /
old 2: set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
new 2: set result = xmltransform(xml,xmltype(bfilename(USER,'k_xsl.xsl'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
old 3: where fragCount = &3
new 3: where fragCount = 100
1 row updated.
Elapsed: 00:00:00.23
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.03
SQL> select fragCount, dbms_lob.getLength(xml_text),dbms_lob.getLength(result)
2 from source_data_table
3 /
FRAGCOUNT DBMS_LOB.GETLENGTH(XML_TEXT) DBMS_LOB.GETLENGTH(RESULT)
50 28014 104550
100 55964 209100
500 279564
1000 559064
2000 1118064
5000 2795064
6 rows selected.
Elapsed: 00:00:00.01
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:45:02 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool testcase_&3..log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> --
SQL> update source_data_table
2 set xml = xmltype(xml_text)
3 where fragCount = &3
4 /
old 3: where fragCount = &3
new 3: where fragCount = 500
1 row updated.
Elapsed: 00:00:00.12
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.03
SQL> update source_data_table
2 set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
3 where fragCount = &3
4 /
old 2: set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
new 2: set result = xmltransform(xml,xmltype(bfilename(USER,'k_xsl.xsl'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
old 3: where fragCount = &3
new 3: where fragCount = 500
1 row updated.
Elapsed: 00:00:01.76
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.00
SQL> select fragCount, dbms_lob.getLength(xml_text),dbms_lob.getLength(result)
2 from source_data_table
3 /
FRAGCOUNT DBMS_LOB.GETLENGTH(XML_TEXT) DBMS_LOB.GETLENGTH(RESULT)
50 28014 104550
100 55964 209100
500 279564 1045500
1000 559064
2000 1118064
5000 2795064
6 rows selected.
Elapsed: 00:00:00.00
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:45:04 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool testcase_&3..log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> --
SQL> update source_data_table
2 set xml = xmltype(xml_text)
3 where fragCount = &3
4 /
old 3: where fragCount = &3
new 3: where fragCount = 1000
1 row updated.
Elapsed: 00:00:00.28
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.01
SQL> update source_data_table
2 set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
3 where fragCount = &3
4 /
old 2: set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
new 2: set result = xmltransform(xml,xmltype(bfilename(USER,'k_xsl.xsl'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
old 3: where fragCount = &3
new 3: where fragCount = 1000
1 row updated.
Elapsed: 00:00:06.04
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.00
SQL> select fragCount, dbms_lob.getLength(xml_text),dbms_lob.getLength(result)
2 from source_data_table
3 /
FRAGCOUNT DBMS_LOB.GETLENGTH(XML_TEXT) DBMS_LOB.GETLENGTH(RESULT)
50 28014 104550
100 55964 209100
500 279564 1045500
1000 559064 2091000
2000 1118064
5000 2795064
6 rows selected.
Elapsed: 00:00:00.00
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:45:11 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool testcase_&3..log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> --
SQL> update source_data_table
2 set xml = xmltype(xml_text)
3 where fragCount = &3
4 /
old 3: where fragCount = &3
new 3: where fragCount = 2000
1 row updated.
Elapsed: 00:00:00.42
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.02
SQL> update source_data_table
2 set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
3 where fragCount = &3
4 /
old 2: set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
new 2: set result = xmltransform(xml,xmltype(bfilename(USER,'k_xsl.xsl'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
old 3: where fragCount = &3
new 3: where fragCount = 2000
1 row updated.
Elapsed: 00:00:24.43
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.03
SQL> select fragCount, dbms_lob.getLength(xml_text),dbms_lob.getLength(result)
2 from source_data_table
3 /
FRAGCOUNT DBMS_LOB.GETLENGTH(XML_TEXT) DBMS_LOB.GETLENGTH(RESULT)
50 28014 104550
100 55964 209100
500 279564 1045500
1000 559064 2091000
2000 1118064 4182000
5000 2795064
6 rows selected.
Elapsed: 00:00:00.00
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Feb 10 07:45:36 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
SQL> spool testcase_&3..log
SQL> --
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> --
SQL> update source_data_table
2 set xml = xmltype(xml_text)
3 where fragCount = &3
4 /
old 3: where fragCount = &3
new 3: where fragCount = 5000
1 row updated.
Elapsed: 00:00:02.02
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.05
SQL> update source_data_table
2 set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
3 where fragCount = &3
4 /
old 2: set result = xmltransform(xml,xmltype(bfilename(USER,'&4'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
new 2: set result = xmltransform(xml,xmltype(bfilename(USER,'k_xsl.xsl'),nls_charset_id('WE8ISO8859P1'))).getClobVal()
old 3: where fragCount = &3
new 3: where fragCount = 5000
1 row updated.
Elapsed: 00:03:19.02
SQL> commit
2 /
Commit complete.
Elapsed: 00:00:00.01
SQL> select fragCount, dbms_lob.getLength(xml_text),dbms_lob.getLength(result)
2 from source_data_table
3 /
FRAGCOUNT DBMS_LOB.GETLENGTH(XML_TEXT) DBMS_LOB.GETLENGTH(RESULT)
50 28014 104550
100 55964 209100
500 279564 1045500
1000 559064 2091000
2000 1118064 4182000
5000 2795064 10455000
6 rows selected.
Elapsed: 00:00:00.04
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
bash-2.05b$ -
Slow Performance with XMLType table
Hi Mark,
We are trying to implement a new interface program based on XML DB.
We have a table named BO_XML.
Create table BO_XML (Circuit_ID Varchar2(12), BO_XMLDOC XMLTYPE);
Then, we inserted an xml document with an XSD into this BO_XML table.
The xml document has 15 elements and it has around 6000 records.
Once we insert the xml documents, the next step will be extract the contents of
the xml documents and insert the record into the STG_TEMP table.
But the following query for this takes more than 5 minutes and since we have
many jobs like this to run, this query will need to be optimized.(please note
that the same query run faster if it has few records in the xml document like 5
to 10.)
We are using xPath with XMLSequnce to parse the xml document.
Please help.
Thanks,
Ron
INSERT INTO STG_TEMP
(Circuit_Number,
Unit_Number,
Unit_Name,
Release,
Release_Name,
PlayDate,
Show_Category,
Admission_Type_ID,
Ticket_Price,
Tickets_Sold,
Tickets_Refunded,
Ticket_Tax,
Total_Tax,
Ticket_Open,
Ticket_Close,
FROM_EDI_INDICATOR,
Updater,
Time_Stamp
SELECT
x.Circuit_Id,
TRIM(SUBSTR(extractValue(VALUE(t1),'//TheatreNumber'), 1, 12)) ,
TRIM(SUBSTR(extractValue(VALUE(t1),'//TheatreName'), 1, 25) ) ,
TRIM(SUBSTR(extractValue(VALUE(t1),'//MovieNumber'), 1, 12 ) ) ,
TRIM(SUBSTR(extractValue(VALUE(t1),'//MovieTitle'), 1, 30) ),
TRIM(SUBSTR(extractValue(VALUE(t1),'//DatePlayed'),1, 10) ),
TRIM(SUBSTR(extractValue(VALUE(t1),'//ShowCategory'),1, 12)) ,
TRIM(SUBSTR(extractValue(VALUE(t1),'//AdmissionType'),1, 12)) ,
TRIM(SUBSTR(extractValue(VALUE(t1),'//TicketPrice'), 1, 10)),
TRIM(SUBSTR(extractValue(VALUE(t1),'//TicketsSold'),1, 9)),
TRIM(SUBSTR(extractValue(VALUE(t1),'//TicketRefund'),1, 5)),
TRIM(SUBSTR(extractValue(VALUE(t1),'//TaxAmount'),1, 10)),
TRIM(SUBSTR(extractValue(VALUE(t1),'//TaxAmount'),1, 10)),
TRIM(SUBSTR(extractValue(VALUE(t1),'//OpeningTicket'),1, 10)),
TRIM(SUBSTR(extractValue(VALUE(t1),'//ClosingTicket') , 1, 10)),
'N',
USER,
SYSDATE
FROM BO_XML x,
TABLE ( xmlsequence ( EXTRACT( x.BO_XMLDOC,'BO/BO_RECORD'))) t1 ;I also have a performance issue with a xmltype column
without an associated schema. If you're recommanding
to associate a schema, I would like to understand why.
Can you please explain this a bit more?
Tnx,
Jeroen -
Bad performance of XMLType.appendChildXML
declare
l_xml xmltype;
l_xml2 xmltype;
begin
l_xml := xmltype.createxml(xmlData => bfilename('XMLDIR2', 'demo.xml'),
csid => 0,
schema => null);
if l_xml.existsNode('/UNIVERSITY/PKU/DEP/PHY') = 0 then
l_xml2 := l_xml;
for i in 1 .. 1000000 loop
l_xml2 := l_xml2.appendChildXML('/UNIVERSITY/PKU/DEP',
xmltype('<PHY' || i || '/>')); --
end loop;
end if;
end;
line 11 take me whole day to execute , it seems a bottleneck , why ? many thanks!!!Database version please?
line 11 take me whole day to execute , it seems a bottleneck , why ?
Is it that suprising?
Inserting 1,000,000 nodes one by one like this requires building a DOM object every single time out of a growing XML content. It ought to take time.
This should be way faster :
declare
l_xml xmltype;
l_xml2 xmltype;
begin
l_xml := xmltype('<UNIVERSITY><PKU><DEP></DEP></PKU></UNIVERSITY>');
if l_xml.existsNode('/UNIVERSITY/PKU/DEP/PHY') = 0 then
select xmlagg(xmlelement(evalname('PHY'||to_char(level))))
into l_xml2
from dual
connect by level <= 1000000;
l_xml := l_xml.appendChildXML('/UNIVERSITY/PKU/DEP', l_xml2);
end if;
end; -
Index don't improve the performance
Hello everyone,
I've a problem on improving the performance of XMLType Column. In fact, I've created a table with tow column a Number column and a XMLType column and found out that the retreival time is quite unexceptal for the following SQL Statement:
Select id, extractValue(data, '/requestor/name') From
requestor Where extractValue(data, '/requestor/name')
= 'Req1640'
So I have created an Index like this:
create index req_name_index on requestor
extractValue(data, '/requestor/name')
but it don't improve the performance.
What's wrong?
ThanksHi David,
Once you had defined the 2 entries for the Browsing Index, have you rebuilt the indexes for the database ?
You can either use db2index or export and re-import the data.
Regards,
Ludovic. -
So, this question was originally asked here...
http://stackoverflow.com/questions/4327337/does-oracles-xmltype-support-jdbc-batch-updates
However, that was three years ago. Does JDBC batching still not help with performance with XMLType objects as of 11.2.0.3?Hi William,
Assumming that you are batching only Statements and CallableStatements.
When a batch of say 10 statements are send and the 5th one fails, then Oracle JDBC returns an array of update counts till the
no of successfully executed statements , in this case it will be an array containing 4 elements( since the 5th failed).
from this we can find out which statement has failed.
note: this feature does not work with PreparedStatement. (to my knowledge there is no way of getting it)
Hope this helps
Elango. -
How to improve performance of a query that is based on an xmltype table
Dear Friends,
I have a query that is pulling records from an xmltype table with 9000 rows and it is running very slow.
I am using XMLTABLE command to retreive the rows. It is taking upto 30 minutes to finish.
Would you be able to suggest how I can make it faster. Thanks.
Below is the query.....
INSERT INTO temp_sap_po_receipt_history_t
(po_number, po_line_number, doc_year,
material_doc, material_doc_item, quantity, sap_ref_doc_no_long,
reference_doc, movement_type_code,
sap_ref_doc_no, posting_date, entry_date, entry_time, hist_type)
SELECT :pin_po_number po_number,
b.po_line_number, b.doc_year,
b.material_doc, b.material_doc_item, b.quantity, b.sap_ref_doc_no_long,
b.reference_doc, b.movement_type_code,
b.sap_ref_doc_no, to_date(b.posting_date,'rrrr-mm-dd'),
to_date(b.entry_date,'rrrr-mm-dd'), b.entry_time, b.hist_type
FROM temp_xml t,
XMLTABLE(XMLNAMESPACES('urn:sap-com:document:sap:rfc:functions' AS "n0"),
'/n0:BAPI_PO_GETDETAIL1Response/POHISTORY/item'
PASSING t.object_value
COLUMNS PO_LINE_NUMBER VARCHAR2(20) PATH 'PO_ITEM',
DOC_YEAR varchar2(4) PATH 'DOC_YEAR',
MATERIAL_DOC varchar2(30) PATH 'MAT_DOC',
MATERIAL_DOC_ITEM VARCHAR2(10) PATH 'MATDOC_ITEM',
QUANTITY NUMBER(20,6) PATH 'QUANTITY',
SAP_REF_DOC_NO_LONG VARCHAR2(20) PATH 'REF_DOC_NO_LONG',
REFERENCE_DOC VARCHAR2(20) PATH 'REF_DOC',
MOVEMENT_TYPE_CODE VARCHAR2(4) PATH 'MOVE_TYPE',
SAP_REF_DOC_NO VARCHAR2(20) PATH 'REF_DOC_NO',
POSTING_DATE VARCHAR2(10) PATH 'PSTNG_DATE',
ENTRY_DATE VARCHAR2(10) PATH 'ENTRY_DATE',
ENTRY_TIME VARCHAR2(8) PATH 'ENTRY_TIME',
HIST_TYPE VARCHAR2(5) PATH 'HIST_TYPE') b;Based on response from mdrake on this thread:
Re: XML file processing into oracle
For large XML's, you can speed up the processing of XMLTABLE by using a registered schema...
declare
SCHEMAURL VARCHAR2(256) := 'http://xmlns.example.org/xsd/testcase.xsd';
XMLSCHEMA VARCHAR2(4000) := '<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xdb="http://xmlns.oracle.com/xdb" xdb:storeVarrayAsTable="true">
<xs:element name="cust_order" type="cust_orderType" xdb:defaultTable="CUST_ORDER_TBL"/>
<xs:complexType name="groupType" xdb:maintainDOM="false">
<xs:sequence>
<xs:element name="item" type="itemType" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="xs:byte" use="required"/>
</xs:complexType>
<xs:complexType name="itemType" xdb:maintainDOM="false">
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="id" type="xs:short" use="required"/>
<xs:attribute name="name" type="xs:string" use="required"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="cust_orderType" xdb:maintainDOM="false">
<xs:sequence>
<xs:element name="group" type="groupType" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="cust_id" type="xs:short" use="required"/>
</xs:complexType>
</xs:schema>';
INSTANCE CLOB :=
'<cust_order cust_id="12345">
<group id="1">
<item id="1" name="Standard Mouse">100</item>
<item id="2" name="Keyboard">100</item>
<item id="3" name="Memory Module 2Gb">200</item>
<item id="4" name="Processor 3Ghz">25</item>
<item id="5" name="Processor 2.4Ghz">75</item>
</group>
<group id="2">
<item id="1" name="Graphics Tablet">15</item>
<item id="2" name="Keyboard">15</item>
<item id="3" name="Memory Module 4Gb">15</item>
<item id="4" name="Processor Quad Core 2.8Ghz">15</item>
</group>
<group id="3">
<item id="1" name="Optical Mouse">5</item>
<item id="2" name="Ergo Keyboard">5</item>
<item id="3" name="Memory Module 2Gb">10</item>
<item id="4" name="Processor Dual Core 2.4Ghz">5</item>
<item id="5" name="Dual Output Graphics Card">5</item>
<item id="6" name="28inch LED Monitor">10</item>
<item id="7" name="Webcam">5</item>
<item id="8" name="A3 1200dpi Laser Printer">2</item>
</group>
</cust_order>';
begin
dbms_xmlschema.registerSchema
schemaurl => SCHEMAURL
,schemadoc => XMLSCHEMA
,local => TRUE
,genTypes => TRUE
,genBean => FALSE
,genTables => TRUE
,ENABLEHIERARCHY => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE
execute immediate 'insert into CUST_ORDER_TBL values (XMLTYPE(:INSTANCE))' using INSTANCE;
end;
SQL> desc CUST_ORDER_TBL
Name Null? Type
TABLE of SYS.XMLTYPE(XMLSchema "http://xmlns.example.org/xsd/testcase.xsd" Element "cust_order") STORAGE Object-relational TYPE "cust_orderType222_T"
SQL> set autotrace on explain
SQL> set pages 60 lines 164 heading on
SQL> col cust_id format a8
SQL> select extract(object_value,'/cust_order/@cust_id') as cust_id
2 ,grp.id as group_id, itm.id as item_id, itm.inm as item_name, itm.qty as item_qty
3 from CUST_ORDER_TBL
4 ,XMLTABLE('/cust_order/group'
5 passing object_value
6 columns id number path '@id'
7 ,item xmltype path 'item'
8 ) grp
9 ,XMLTABLE('/item'
10 passing grp.item
11 columns id number path '@id'
12 ,inm varchar2(30) path '@name'
13 ,qty number path '.'
14 ) itm
15 /
CUST_ID GROUP_ID ITEM_ID ITEM_NAME ITEM_QTY
12345 1 1 Standard Mouse 100
12345 1 2 Keyboard 100
12345 1 3 Memory Module 2Gb 200
12345 1 4 Processor 3Ghz 25
12345 1 5 Processor 2.4Ghz 75
12345 2 1 Graphics Tablet 15
12345 2 2 Keyboard 15
12345 2 3 Memory Module 4Gb 15
12345 2 4 Processor Quad Core 2.8Ghz 15
12345 3 1 Optical Mouse 5
12345 3 2 Ergo Keyboard 5
12345 3 3 Memory Module 2Gb 10
12345 3 4 Processor Dual Core 2.4Ghz 5
12345 3 5 Dual Output Graphics Card 5
12345 3 6 28inch LED Monitor 10
12345 3 7 Webcam 5
12345 3 8 A3 1200dpi Laser Printer 2
17 rows selected.Need at least 10.2.0.3 for performance i.e. to avoid COLLECTION ITERATOR PICKLER FETCH in execution plan...
On 10.2.0.1:
Execution Plan
Plan hash value: 3741473841
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 24504 | 89M| 873 (1)| 00:00:11 |
| 1 | NESTED LOOPS | | 24504 | 89M| 873 (1)| 00:00:11 |
| 2 | NESTED LOOPS | | 3 | 11460 | 805 (1)| 00:00:10 |
| 3 | TABLE ACCESS FULL | CUST_ORDER_TBL | 1 | 3777 | 3 (0)| 00:00:01 |
|* 4 | INDEX RANGE SCAN | SYS_IOT_TOP_774117 | 3 | 129 | 1 (0)| 00:00:01 |
| 5 | COLLECTION ITERATOR PICKLER FETCH| XMLSEQUENCEFROMXMLTYPE | | | | |
Predicate Information (identified by operation id):
4 - access("NESTED_TABLE_ID"="CUST_ORDER_TBL"."SYS_NC0000900010$")
filter("SYS_NC_TYPEID$" IS NOT NULL)
Note
- dynamic sampling used for this statementOn 10.2.0.3:
Execution Plan
Plan hash value: 1048233240
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 17 | 132K| 839 (0)| 00:00:11 |
| 1 | NESTED LOOPS | | 17 | 132K| 839 (0)| 00:00:11 |
| 2 | MERGE JOIN CARTESIAN | | 17 | 131K| 805 (0)| 00:00:10 |
| 3 | TABLE ACCESS FULL | CUST_ORDER_TBL | 1 | 3781 | 3 (0)| 00:00:01 |
| 4 | BUFFER SORT | | 17 | 70839 | 802 (0)| 00:00:10 |
|* 5 | INDEX FAST FULL SCAN| SYS_IOT_TOP_56154 | 17 | 70839 | 802 (0)| 00:00:10 |
|* 6 | INDEX UNIQUE SCAN | SYS_IOT_TOP_56152 | 1 | 43 | 2 (0)| 00:00:01 |
|* 7 | INDEX RANGE SCAN | SYS_C006701 | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
5 - filter("SYS_NC_TYPEID$" IS NOT NULL)
6 - access("SYS_NTpzENS1H/RwSSC7TVzvlqmQ=="."NESTED_TABLE_ID"="SYS_NTnN5b8Q+8Txi9V
w5Ysl6x9w=="."SYS_NC0000600007$")
filter("SYS_NC_TYPEID$" IS NOT NULL AND
"NESTED_TABLE_ID"="CUST_ORDER_TBL"."SYS_NC0000900010$")
7 - access("SYS_NTpzENS1H/RwSSC7TVzvlqmQ=="."NESTED_TABLE_ID"="SYS_NTnN5b8Q+8Txi9V
w5Ysl6x9w=="."SYS_NC0000600007$")
Note
- dynamic sampling used for this statement----------------------------------------------------------------------------------------------------------
-- CLEAN UP
DROP TABLE CUST_ORDER_TBL purge;
exec dbms_xmlschema.deleteschema('http://xmlns.example.org/xsd/testcase.xsd'); -
Oracle XQuery performance issue in XMLType column
Dear All,
As for oracle I'm using oracle 11g to measure the performance.
I'm using data from XMark project which is a >100MB data of XML for bencmarking purposes.
I make a table that contains an XMLType column and upload the data into that column, after doing that I try to do a query like this:
select xmlquery(
'for $i in /site/people/person
where $i/id = "person0"
return $i/name'
passing BookXMLContent Returning Content)
from Book;
The purpose of this query is to retrieve the name of a person that have id = 'person0'
My questions are:
1. Did I do something wrong with my query?
2. Is there any setting on the database that I should done prior to doing the query to done significantly better result?
3. Is there any other approach that are much better than I currently used?
Regards,
Anthony Steven
Edited by: mdrake on Nov 4, 2009 6:01 AMAnthony
First, please read the licencing terms for Oracle ( And I suspect DB2, MSFT) . You are not allowed to publish externally (in any form, including forum posts :) ) the results of any benchmarking activities. I have edited your post accordingly. I hope this research is not part of a thesis or similar work that would intend making public as you and your institution would be in violation of your licence agreeement were you to do so.
Now back to your question, how can you improve performance for XMark
#1. Can you show us the create table statement you used, so we can see how you created your XMLType column BOOKXMLCONTENT.
#2. Did you create any indexes
#3. Did you look at the explain plan output.
-Mark
Edited by: mdrake on Nov 4, 2009 6:06 AM -
Structured storage XMLType but disappointing performance
Hi,
This relates to Oracle 11g, but maybe the same question can be asked for 10g.
I'm having a lot of big XML files which are structured following this xsd:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xs:schema
xmlns="http://localhost/public/xsd/simple.xsd"
targetNamespace="http://localhost/public/xsd/simple.xsd"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xdb="http://xmlns.oracle.com/xdb"
elementFormDefault="qualified"
attributeFormDefault="unqualified"
xdb:storeVarrayAsTable="true">
<xs:element name="root" xdb:defaultTable="simple_or" xdb:maintainDOM="false">
<xs:complexType>
<xs:sequence>
<xs:element name="ea">
<xs:complexType>
<xs:sequence>
<xs:element name="eb" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="c1" type="xs:double" />
<xs:element name="c2" type="xs:double" />
<xs:element name="c3" type="xs:double" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>I create a VARRAY (the order is important) based structured storage table using the following commands:
declare
l_bfile bfile;
res boolean;
begin
l_bfile := bfilename('EXDIR', 'simple.xsd');
dbms_lob.open(l_bfile);
dbms_xdb.deleteResource('/public/simple.xsd',4);
res := dbms_xdb.createResource('/public/simple.xsd',l_bfile);
end;
BEGIN
DBMS_XMLSchema.deleteSchema(
schemaurl=>'http://localhost/public/xsd/simple.xsd',
delete_option=>DBMS_XMLSchema.Delete_Cascade_Force);
END;
begin
dbms_xmlschema.registerSchema(schemaurl => 'http://localhost/public/xsd/simple.xsd',
schemadoc => xdbUriType('/public/simple.xsd').getXML(),
local => true,
gentypes => true,
genbean => false,
gentables => true,
force => false,
owner => user);
end;
CREATE TABLE simple_or_1 OF XMLType
XMLSCHEMA "http://localhost/public/xsd/simple.xsd"
ELEMENT "root"
VARRAY "XMLDATA"."ea"."eb"
STORE AS TABLE simple_nested1
((PRIMARY KEY (NESTED_TABLE_ID, SYS_NC_ARRAY_INDEX$)))
/And I load some XML files of the following form:
<?xml version="1.0" encoding="UTF-8"?>
<root xmlns="http://localhost/public/xsd/simple.xsd">
<ea>
<eb>
<c1>4.0</c1>
<c2>5.0</c2>
<c3>6.0</c3>
</eb>
<eb>
<c1>7.0</c1>
<c2>8.0</c2>
<c3>9.0</c3>
</eb>
<eb>
<c1>7.0</c1>
... etc ...
</ea>
</root>
Every document has about 50.000 <eb> elements and I loaded 6 sample documents.
A simple query like the following takes about 5 minutes:
SELECT XMLQuery('
declare default element namespace "http://localhost/public/xsd/simple.xsd"; (: :)
for $i in /root
return max($i/a/b/c2)
' PASSING OBJECT_VALUE RETURNING CONTENT)
FROM simple_or_1;The explain plan shows the following:
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 6 | 60 | 3 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 1901 | | |
|* 2 | TABLE ACCESS BY INDEX ROWID| SIMPLE_NESTED1 | 1969 | 3655K| 6 (0)| 00:00:01 |
|* 3 | INDEX RANGE SCAN | SYS_C009750 | 787 | | 2 (0)| 00:00:01 |
| 4 | SORT AGGREGATE | | 1 | | | |
| 5 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 |
| 6 | TABLE ACCESS FULL | SIMPLE_OR_1 | 6 | 60 | 3 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - filter(SYS_XMLCONV("SYS_ALIAS_2"."SYS_XDBPD$",0,32,'3952ABE048DCF8D6E040007F0101
7EA4',1,5561,1) IS NOT NULL)
3 - access("NESTED_TABLE_ID"=:B1)I'm not understanding the low performance of 5 minutes... is there anyone who can explain and help out?Note with DOM Fidelity disabled on all types the SYS_XMLCONV is replaced with the more efficeint SYS_XMLGEN. However this is still not as efficient as the XMLTable approach..
C:\Documents and Settings\Mark D Drake>sqlplus sys/oracle as sysdba
SQL*Plus: Release 11.1.0.6.0 - Production on Fri Sep 7 06:03:39 2007
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Beta
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> connect / as sysdba
Connected.
SQL> --
SQL> drop user Tijink cascade
2 /
drop user Tijink cascade
ERROR at line 1:
ORA-01918: user 'TIJINK' does not exist
SQL> grant connect, resource, alter session, create view to Tijink identified by Tijink
2 /
Grant succeeded.
SQL> conn Tijink/Tijink
Connected.
SQL> --
SQL> set long 10000000
SQL> set pages 5000
SQL> var schemaPath varchar2(256)
SQL> var schemaURL varchar2(256)
SQL> var xmlSchema clob;
SQL> --
SQL> begin
2 :schemaURL := 'http://localhost/public/xsd/simple.xsd';
3 :schemaPath := '/public/simple.xsd';
4 :xmlSchema :=
5 '<?xml version="1.0" encoding="ISO-8859-1"?>
6 <xs:schema
7 xmlns="http://localhost/public/xsd/simple.xsd"
8 targetNamespace="http://localhost/public/xsd/simple.xsd"
9 xmlns:xs="http://www.w3.org/2001/XMLSchema"
10 xmlns:xdb="http://xmlns.oracle.com/xdb"
11 elementFormDefault="qualified"
12 attributeFormDefault="unqualified"
13 xdb:storeVarrayAsTable="true">
14 <xs:element name="root" xdb:defaultTable="simple_or">
15 <xs:complexType xdb:maintainDOM="false">
16 <xs:sequence>
17 <xs:element name="ea">
18 <xs:complexType xdb:maintainDOM="false">
19 <xs:sequence>
20 <xs:element name="eb" minOccurs="1" maxOccurs="unbounded">
21 <xs:complexType xdb:maintainDOM="false">
22 <xs:sequence>
23 <xs:element name="c1" type="xs:double" />
24 <xs:element name="c2" type="xs:double" />
25 <xs:element name="c3" type="xs:double" />
26 </xs:sequence>
27 </xs:complexType>
28 </xs:element>
29 </xs:sequence>
30 </xs:complexType>
31 </xs:element>
32 </xs:sequence>
33 </xs:complexType>
34 </xs:element>
35 </xs:schema>';
36 end;
37 /
PL/SQL procedure successfully completed.
SQL> alter session set events='31098 trace name context forever'
2 /
Session altered.
SQL> DECLARE
2 BINARY_XML boolean:=FALSE;
3 BEGIN
4 IF (BINARY_XML)
5 THEN
6 dbms_xmlschema.registerSchema(SCHEMAURL => :schemaURL,
7 SCHEMADOC => :xmlschema,
8 LOCAL => TRUE,
9 GENTYPES => FALSE,
10 GENBEAN => FALSE,
11 GENTABLES => FALSE,
12 ENABLEHIERARCHY => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE,
13 FORCE => FALSE,
14 OPTIONS => DBMS_XMLSCHEMA.REGISTER_BINARYXML,
15 OWNER => USER);
16 ELSE
17 dbms_xmlschema.registerSchema(SCHEMAURL => :schemaURL,
18 SCHEMADOC => :xmlSchema,
19 LOCAL => TRUE,
20 GENTYPES => TRUE,
21 GENBEAN => FALSE,
22 GENTABLES => TRUE,
23 ENABLEHIERARCHY => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE,
24 FORCE => FALSE,
25 OWNER => USER);
26 END IF;
27 END;
28 /
PL/SQL procedure successfully completed.
SQL> --
SQL> set timing on
SQL> set long 1000000
SQL> set pages 50000
SQL> set lines 200
SQL> --
SQL> call dbms_stats.GATHER_SCHEMA_STATS('TIJINK')
2 /
Call completed.
Elapsed: 00:00:01.67
SQL> set autotrace on explain
SQL> --
SQL> SELECT XMLQuery
2 ('
3 declare default element namespace "http://localhost/public/xsd/simple.xsd"; (: :)
4 for $i in /root
5 return max($i/ea/eb/c2)
6 ' PASSING OBJECT_VALUE RETURNING CONTENT)
7 FROM "simple_or"
8 /
no rows selected
Elapsed: 00:00:00.28
Execution Plan
Plan hash value: 3716725992
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 10 | 2 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 23 | | |
|* 2 | TABLE ACCESS BY INDEX ROWID| SYS_NTobq/uFrTQGaOrq3BeDy9Eg== | 1 | 23 | 0 (0)| 00:00:01 |
|* 3 | INDEX RANGE SCAN | SYS_C009648 | 1 | | 0 (0)| 00:00:01 |
| 4 | SORT AGGREGATE | | 1 | | | |
| 5 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 |
| 6 | TABLE ACCESS FULL | simple_or | 1 | 10 | 2 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - filter(SYS_XMLGEN(TO_CHAR("SYS_ALIAS_1"."c2")) IS NOT NULL)
3 - access("NESTED_TABLE_ID"=:B1)
SQL> select max(c2)
2 from "simple_or",
3 xmltable
4 (
5 xmlnamespaces
6 (
7 default 'http://localhost/public/xsd/simple.xsd'
8 ),
9 '/root/ea/eb'
10 passing OBJECT_VALUE
11 columns
12 C2 PATH 'c2'
13 )
14 /
MAX(C2)
Elapsed: 00:00:00.15
Execution Plan
Plan hash value: 1041340395
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 33 | 0 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 33 | | |
| 2 | NESTED LOOPS | | | | | |
| 3 | NESTED LOOPS | | 1 | 33 | 0 (0)| 00:00:01 |
| 4 | INDEX FULL SCAN | SYS_C009649 | 1 | 10 | 0 (0)| 00:00:01 |
|* 5 | INDEX RANGE SCAN | SYS_C009648 | 1 | | 0 (0)| 00:00:01 |
| 6 | TABLE ACCESS BY INDEX ROWID| SYS_NTobq/uFrTQGaOrq3BeDy9Eg== | 1 | 23 | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
5 - access("NESTED_TABLE_ID"="simple_or"."SYS_NC0000700008$")
SQL> desc "simple_or"
Name Null? Type
TABLE of SYS.XMLTYPE(XMLSchema "http://localhost/public/xsd/simple.xsd" Element "root") STORAGE Object-relational TYPE "root648_T"
SQL> desc "root648_T"
Name Null? Type
ea ea649_T
SQL> desc "ea649_T"
Name Null? Type
eb eb651_COLL
SQL> desc "eb651_COLL"
"eb651_COLL" VARRAY(2147483647) OF eb650_T
Name Null? Type
c1 NUMBER
c2 NUMBER
c3 NUMBER
SQL> -
Insert performance on a table with schema based XMLType column
Hi,
We are inserting around 500K rows into a table which has one XMLType column (schema based). Schema is simple and the size of the XMLType column is also not very large (on an average only around 100 bytes (max might be around 1k-2k), but it takes around 1 hr for every 20K rows, which seems very slow.
The schema is like this :
<schema targetNamespace="http://www.citadon.com/xml/test.xsd"
xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:xdb="http://xmlns.oracle.com/xdb"
xdb:storeVarrayAsTable="true"
version="1.0" elementFormDefault="qualified">
<element name="cas">
<complexType>
<sequence>
<element name="ca" minOccurs="0" maxOccurs="unbounded">
<complexType>
<sequence>
<element name="id" type="string"/>
<element name="value" type="string"/>
</sequence>
</complexType>
</element>
</sequence>
</complexType>
</element>
</schema>
Any thoughts on how to improve performance?
-SriniYou need to have sufficient data.. Also the event show in the following code may help depending on the nature of the query....
Note in the PurchaseOrder Example if I only have 133 docs, instead of 10,000 I will get tablescan and index full scans
C:\oracle\xdb\bugs\xdbBasicDemo>sqlplus /nolog @testcase XDBTEST XDBTEST
SQL*Plus: Release 10.1.0.3.0 - Production on Fri Aug 27 22:57:36 2004
Copyright (c) 1982, 2004, Oracle. All rights reserved.
SQL> spool testcase.log
SQL> set trimspool on
SQL> connect &1/&2
Connected.
SQL> --
SQL> set timing on
SQL> set long 10000
SQL> set pages 10000
SQL> set feedback on
SQL> set lines 132
SQL> set pages 50
SQL> --
SQL> drop index iPartNumberIndex
2 /
Index dropped.
Elapsed: 00:00:02.25
SQL> alter index LINEITEM_LIST rebuild
2 /
Index altered.
Elapsed: 00:00:02.15
SQL> desc PURCHASEORDER
Name Null? Type
TABLE of SYS.XMLTYPE(XMLSchema "http://localhost:8080/home/SCOTT/poSource/xsd/purchaseOrder.xsd" Element "Pu
ject-relational TYPE "PURCHASEORDER_T"
SQL> --
SQL> col level format 99999
SQL> col parent_table_column format A32
SQL> col table_name format A32
SQL> col table_type_name format A32
SQL> --
SQL> select level, PARENT_TABLE_COLUMN, TABLE_TYPE_NAME, TABLE_NAME
2 from USER_NESTED_TABLES
3 connect by PRIOR TABLE_NAME = PARENT_TABLE_NAME
4 start with PARENT_TABLE_NAME = 'PURCHASEORDER'
5 /
LEVEL PARENT_TABLE_COLUMN TABLE_TYPE_NAME TABLE_NAME
1 "XMLDATA"."ACTIONS"."ACTION" ACTION_V ACTION_TABLE
1 "XMLDATA"."LINEITEMS"."LINEITEM" LINEITEM_V LINEITEM_TABLE
2 rows selected.
Elapsed: 00:00:13.60
SQL> desc LINEITEM_T
LINEITEM_T is NOT FINAL
Name Null? Type
SYS_XDBPD$ XDB.XDB$RAW_LIST_T
ITEMNUMBER NUMBER(38)
DESCRIPTION VARCHAR2(256 CHAR)
PART PART_T
SQL> --
SQL> desc PART_T
PART_T is NOT FINAL
Name Null? Type
SYS_XDBPD$ XDB.XDB$RAW_LIST_T
PART_NUMBER VARCHAR2(14 CHAR)
QUANTITY NUMBER(12,2)
UNITPRICE NUMBER(8,4)
SQL> --
SQL> select count(*)
2 from purchaseorder
3 /
COUNT(*)
10000
1 row selected.
Elapsed: 00:00:05.31
SQL> select count(*)
2 from purchaseorder,
3 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
4 /
COUNT(*)
148814
1 row selected.
Elapsed: 00:09:40.54
SQL> create index iPartNumberIndex
2 on LINEITEM_TABLE l
3 ( l.PART.PART_NUMBER,NESTED_TABLE_ID)
4 /
Index created.
Elapsed: 00:00:36.11
SQL> explain plan for
2 select count(*)
3 from purchaseorder
4 where existsNode(object_value,'/PurchaseOrder/LineItems/LineItem[Part/@Id="717951002372"]') = 1
5 /
Explained.
Elapsed: 00:00:01.14
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 2571550067
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 116 | 93 (2)| 00:00:02 |
| 1 | SORT AGGREGATE | | 1 | 116 | | |
| 2 | NESTED LOOPS | | 25 | 2900 | 93 (2)| 00:00:02 |
| 3 | SORT UNIQUE | | 25 | 1675 | 79 (0)| 00:00:01 |
|* 4 | INDEX UNIQUE SCAN | LINEITEM_DATA | 25 | 1675 | 79 (0)| 00:00:01 |
|* 5 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | | 3 (0)| 00:00:01 |
|* 6 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 49 | 1 (0)| 00:00:01 |
|* 7 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
4 - access("SYS_NC00011$"='717951002372')
5 - access("SYS_NC00011$"='717951002372')
6 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-in
stance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-propert
ies/><read-contents/></privilege>''))=1)
7 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
26 rows selected.
Elapsed: 00:00:03.12
SQL> select count(*)
2 from purchaseorder
3 where existsNode(object_value,'/PurchaseOrder/LineItems/LineItem[Part/@Id="717951002372"]') = 1
4 /
COUNT(*)
33
1 row selected.
Elapsed: 00:00:04.63
SQL> select count(*)
2 from purchaseorder,
3 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
4 where existsNode(value(l),'/LineItem[Part/@Id="717951002372"]') = 1
5 /
COUNT(*)
33
1 row selected.
Elapsed: 00:00:00.32
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 2571550067
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 116 | 93 (2)| 00:00:02 |
| 1 | SORT AGGREGATE | | 1 | 116 | | |
| 2 | NESTED LOOPS | | 25 | 2900 | 93 (2)| 00:00:02 |
| 3 | SORT UNIQUE | | 25 | 1675 | 79 (0)| 00:00:01 |
|* 4 | INDEX UNIQUE SCAN | LINEITEM_DATA | 25 | 1675 | 79 (0)| 00:00:01 |
|* 5 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | | 3 (0)| 00:00:01 |
|* 6 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 49 | 1 (0)| 00:00:01 |
|* 7 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
4 - access("SYS_NC00011$"='717951002372')
5 - access("SYS_NC00011$"='717951002372')
6 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-in
stance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-propert
ies/><read-contents/></privilege>''))=1)
7 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
26 rows selected.
Elapsed: 00:00:00.04
SQL> explain plan for
2 select extractValue(object_value,'/PurchaseOrder/Reference')
3 from purchaseorder,
4 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
5 where existsNode(value(l),'/LineItem[Part/@Id="717951002372"]') = 1
6 /
Explained.
Elapsed: 00:00:00.07
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 713363872
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 25 | 8000 | 104 (0)| 00:00:02 |
| 1 | NESTED LOOPS | | 25 | 8000 | 104 (0)| 00:00:02 |
|* 2 | INDEX UNIQUE SCAN | LINEITEM_DATA | 25 | 1675 | 79 (0)| 00:00:01 |
|* 3 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | | 3 (0)| 00:00:01 |
|* 4 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 253 | 1 (0)| 00:00:01 |
|* 5 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - access("SYS_NC00011$"='717951002372')
3 - access("SYS_NC00011$"='717951002372')
4 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-proper
ties/><read-contents/></privilege>''))=1)
5 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
24 rows selected.
Elapsed: 00:00:00.04
SQL> select extractValue(object_value,'/PurchaseOrder/Reference')
2 from purchaseorder,
3 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
4 where existsNode(value(l),'/LineItem[Part/@Id="717951002372"]') = 1
5 /
EXTRACTVALUE(OBJECT_VALUE,'/PU
MWEISS-20030616154327385GMT
NSARCHAN-20030703170041824GMT
HBAER-20030206173836987GMT
LOZER-20031110131149107GMT
WTAYLOR-20030120174534374GMT
MHARTSTE-20031103172937613GMT
KGEE-20030919215826550GMT
PSULLY-20030712141634504GMT
JPATEL-20030630175356693GMT
RMATOS-2003072920455000GMT
DRAPHEAL-20030528180033254GMT
JRUSSEL-20031121213026539GMT
PTUCKER-20030918160532301GMT
SVOLLMAN-20031027120838903GMT
WGIETZ-20030208185026303GMT
TFOX-20030110164614994GMT
JPATEL-20030304214301386GMT
GGEONI-20030606135257846GMT
STOBIAS-20030817120358785GMT
COLSEN-20030525200717658GMT
SBAIDA-20030224182546606GMT
IMIKKILI-20030118180347537GMT
ABULL-20030429162730766GMT
NSARCHAN-20031113183134873GMT
LBISSOT-20030809134114505GMT
JKING-20030420162058859GMT
JMALLIN-20030506152048261GMT
AFRIPP-20030311153808601GMT
SHIGGINS-20030831151756257GMT
DBERNSTE-20030626122725631GMT
KPARTNER-20031021160248962GMT
ABANDA-2003062721524842GMT
DOCONNEL-20030904214708637GMT
33 rows selected.
Elapsed: 00:00:00.07
SQL> explain plan for
2 select extractValue(object_value,'/PurchaseOrder/Reference')
3 from purchaseorder
4 where existsNode
5 (
6 object_value,
7 '/PurchaseOrder/LineItems/LineItem/Part[@Id="717951002372"]'
8 ) = 1
9 /
Explained.
Elapsed: 00:00:00.02
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 849879259
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 25 | 8000 | 93 (2)| 00:00:02 |
| 1 | NESTED LOOPS | | 25 | 8000 | 93 (2)| 00:00:02 |
| 2 | SORT UNIQUE | | 25 | 1675 | 79 (0)| 00:00:01 |
|* 3 | INDEX UNIQUE SCAN | LINEITEM_DATA | 25 | 1675 | 79 (0)| 00:00:01 |
|* 4 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | | 3 (0)| 00:00:01 |
|* 5 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 253 | 1 (0)| 00:00:01 |
|* 6 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
3 - access("SYS_NC00011$"='717951002372')
4 - access("SYS_NC00011$"='717951002372')
5 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-proper
ties/><read-contents/></privilege>''))=1)
6 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
25 rows selected.
Elapsed: 00:00:00.03
SQL> select extractValue(object_value,'/PurchaseOrder/Reference')
2 from purchaseorder
3 where existsNode
4 (
5 object_value,
6 '/PurchaseOrder/LineItems/LineItem/Part[@Id="717951002372"]'
7 ) = 1
8 /
EXTRACTVALUE(OBJECT_VALUE,'/PU
MWEISS-20030616154327385GMT
NSARCHAN-20030703170041824GMT
HBAER-20030206173836987GMT
LOZER-20031110131149107GMT
WTAYLOR-20030120174534374GMT
MHARTSTE-20031103172937613GMT
KGEE-20030919215826550GMT
PSULLY-20030712141634504GMT
JPATEL-20030630175356693GMT
RMATOS-2003072920455000GMT
DRAPHEAL-20030528180033254GMT
JRUSSEL-20031121213026539GMT
PTUCKER-20030918160532301GMT
SVOLLMAN-20031027120838903GMT
WGIETZ-20030208185026303GMT
TFOX-20030110164614994GMT
JPATEL-20030304214301386GMT
GGEONI-20030606135257846GMT
STOBIAS-20030817120358785GMT
COLSEN-20030525200717658GMT
SBAIDA-20030224182546606GMT
IMIKKILI-20030118180347537GMT
ABULL-20030429162730766GMT
NSARCHAN-20031113183134873GMT
LBISSOT-20030809134114505GMT
JKING-20030420162058859GMT
JMALLIN-20030506152048261GMT
AFRIPP-20030311153808601GMT
SHIGGINS-20030831151756257GMT
DBERNSTE-20030626122725631GMT
KPARTNER-20031021160248962GMT
ABANDA-2003062721524842GMT
DOCONNEL-20030904214708637GMT
33 rows selected.
Elapsed: 00:00:00.04
SQL> alter session set events ='19027 trace name context forever, level 0x800000'
2 /
Session altered.
Elapsed: 00:00:00.00
SQL> explain plan for
2 select count(*)
3 from purchaseorder
4 where existsNode(object_value,'/PurchaseOrder/LineItems/LineItem[Part/@Id="717951002372"]') = 1
5 /
Explained.
Elapsed: 00:00:00.03
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 3049344732
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 69 | 17 (6)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 69 | | |
| 2 | NESTED LOOPS | | 25 | 1725 | 17 (6)| 00:00:01 |
| 3 | SORT UNIQUE | | 25 | 750 | 3 (0)| 00:00:01 |
|* 4 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | 750 | 3 (0)| 00:00:01 |
|* 5 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 39 | 1 (0)| 00:00:01 |
|* 6 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
4 - access("SYS_NC00011$"='717951002372')
5 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-in
stance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-propert
ies/><read-contents/></privilege>''))=1)
6 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
24 rows selected.
Elapsed: 00:00:00.03
SQL> select count(*)
2 from purchaseorder
3 where existsNode(object_value,'/PurchaseOrder/LineItems/LineItem[Part/@Id="717951002372"]') = 1
4 /
COUNT(*)
33
1 row selected.
Elapsed: 00:00:00.01
SQL> select count(*)
2 from purchaseorder,
3 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
4 where existsNode(value(l),'/LineItem[Part/@Id="717951002372"]') = 1
5 /
COUNT(*)
33
1 row selected.
Elapsed: 00:00:00.01
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 3049344732
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 69 | 17 (6)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 69 | | |
| 2 | NESTED LOOPS | | 25 | 1725 | 17 (6)| 00:00:01 |
| 3 | SORT UNIQUE | | 25 | 750 | 3 (0)| 00:00:01 |
|* 4 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | 750 | 3 (0)| 00:00:01 |
|* 5 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 39 | 1 (0)| 00:00:01 |
|* 6 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
4 - access("SYS_NC00011$"='717951002372')
5 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-in
stance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-propert
ies/><read-contents/></privilege>''))=1)
6 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
24 rows selected.
Elapsed: 00:00:00.03
SQL> explain plan for
2 select extractValue(object_value,'/PurchaseOrder/Reference')
3 from purchaseorder,
4 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
5 where existsNode(value(l),'/LineItem[Part/@Id="717951002372"]') = 1
6 /
Explained.
Elapsed: 00:00:00.06
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 1516269755
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 25 | 2450 | 28 (0)| 00:00:01 |
| 1 | NESTED LOOPS | | 25 | 2450 | 28 (0)| 00:00:01 |
|* 2 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | 750 | 3 (0)| 00:00:01 |
|* 3 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 68 | 1 (0)| 00:00:01 |
|* 4 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - access("SYS_NC00011$"='717951002372')
3 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-proper
ties/><read-contents/></privilege>''))=1)
4 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
22 rows selected.
Elapsed: 00:00:00.04
SQL> select extractValue(object_value,'/PurchaseOrder/Reference')
2 from purchaseorder,
3 table (xmlsequence(extract(object_value,'/PurchaseOrder/LineItems/LineItem'))) l
4 where existsNode(value(l),'/LineItem[Part/@Id="717951002372"]') = 1
5 /
EXTRACTVALUE(OBJECT_VALUE,'/PU
MWEISS-20030616154327385GMT
NSARCHAN-20030703170041824GMT
HBAER-20030206173836987GMT
LOZER-20031110131149107GMT
WTAYLOR-20030120174534374GMT
MHARTSTE-20031103172937613GMT
KGEE-20030919215826550GMT
PSULLY-20030712141634504GMT
JPATEL-20030630175356693GMT
RMATOS-2003072920455000GMT
DRAPHEAL-20030528180033254GMT
JRUSSEL-20031121213026539GMT
PTUCKER-20030918160532301GMT
SVOLLMAN-20031027120838903GMT
WGIETZ-20030208185026303GMT
TFOX-20030110164614994GMT
JPATEL-20030304214301386GMT
GGEONI-20030606135257846GMT
STOBIAS-20030817120358785GMT
COLSEN-20030525200717658GMT
SBAIDA-20030224182546606GMT
IMIKKILI-20030118180347537GMT
ABULL-20030429162730766GMT
NSARCHAN-20031113183134873GMT
LBISSOT-20030809134114505GMT
JKING-20030420162058859GMT
JMALLIN-20030506152048261GMT
AFRIPP-20030311153808601GMT
SHIGGINS-20030831151756257GMT
DBERNSTE-20030626122725631GMT
KPARTNER-20031021160248962GMT
ABANDA-2003062721524842GMT
DOCONNEL-20030904214708637GMT
33 rows selected.
Elapsed: 00:00:00.01
SQL> explain plan for
2 select extractValue(object_value,'/PurchaseOrder/Reference')
3 from purchaseorder
4 where existsNode
5 (
6 object_value,
7 '/PurchaseOrder/LineItems/LineItem/Part[@Id="717951002372"]'
8 ) = 1
9 /
Explained.
Elapsed: 00:00:00.03
SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial'))
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 1197255270
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 25 | 2450 | 17 (6)| 00:00:01 |
| 1 | NESTED LOOPS | | 25 | 2450 | 17 (6)| 00:00:01 |
| 2 | SORT UNIQUE | | 25 | 750 | 3 (0)| 00:00:01 |
|* 3 | INDEX RANGE SCAN | IPARTNUMBERINDEX | 25 | 750 | 3 (0)| 00:00:01 |
|* 4 | TABLE ACCESS BY INDEX ROWID| PURCHASEORDER | 1 | 68 | 1 (0)| 00:00:01 |
|* 5 | INDEX UNIQUE SCAN | LINEITEM_LIST | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
3 - access("SYS_NC00011$"='717951002372')
4 - filter(SYS_CHECKACL("ACLOID","OWNERID",xmltype(''<privilege
xmlns="http://xmlns.oracle.com/xdb/acl.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-i
nstance" xsi:schemaLocation="http://xmlns.oracle.com/xdb/acl.xsd
http://xmlns.oracle.com/xdb/acl.xsd DAV:http://xmlns.oracle.com/xdb/dav.xsd"><read-proper
ties/><read-contents/></privilege>''))=1)
5 - access("NESTED_TABLE_ID"="PURCHASEORDER"."SYS_NC0003400035$")
23 rows selected.
Elapsed: 00:00:00.03
SQL> select extractValue(object_value,'/PurchaseOrder/Reference')
2 from purchaseorder
3 where existsNode
4 (
5 object_value,
6 '/PurchaseOrder/LineItems/LineItem/Part[@Id="717951002372"]'
7 ) = 1
8 /
EXTRACTVALUE(OBJECT_VALUE,'/PU
MWEISS-20030616154327385GMT
NSARCHAN-20030703170041824GMT
HBAER-20030206173836987GMT
LOZER-20031110131149107GMT
WTAYLOR-20030120174534374GMT
MHARTSTE-20031103172937613GMT
KGEE-20030919215826550GMT
PSULLY-20030712141634504GMT
JPATEL-20030630175356693GMT
RMATOS-2003072920455000GMT
DRAPHEAL-20030528180033254GMT
JRUSSEL-20031121213026539GMT
PTUCKER-20030918160532301GMT
SVOLLMAN-20031027120838903GMT
WGIETZ-20030208185026303GMT
TFOX-20030110164614994GMT
JPATEL-20030304214301386GMT
GGEONI-20030606135257846GMT
STOBIAS-20030817120358785GMT
COLSEN-20030525200717658GMT
SBAIDA-20030224182546606GMT
IMIKKILI-20030118180347537GMT
ABULL-20030429162730766GMT
NSARCHAN-20031113183134873GMT
LBISSOT-20030809134114505GMT
JKING-20030420162058859GMT
JMALLIN-20030506152048261GMT
AFRIPP-20030311153808601GMT
SHIGGINS-20030831151756257GMT
DBERNSTE-20030626122725631GMT
KPARTNER-20031021160248962GMT
ABANDA-2003062721524842GMT
DOCONNEL-20030904214708637GMT
33 rows selected.
Elapsed: 00:00:00.03
SQL> quit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options -
JDBC XMLType Insert/Update Performance
I am writing a backend Java EE application that inserts or updates XML documents into a table backed by XMLType. I'm using Oracle 11.2.0.3 with associated drivers and XDK, with connections obtained from an oracle.jdbc.poo.OracleDataSource. Unfortunately, I can't get my application to perform faster than 7 transactions a second, with or without JDBC batching. I've tried several different table structures; here are the two that have shown the most promise:
CREATE TABLE mrbook_raw
id RAW(16),
created_date TIMESTAMP,
last_modified_ts TIMESTAMP,
bk_typ_cd VARCHAR2(16),
bk_invt XMLType,
PRIMARY KEY(id),
FOREIGN KEY (id) REFERENCES mrbook(id)
) XMLTYPE COLUMN bk_invt ELEMENT "http://www.mrbook.com/BookData/Vers1#BK_INVT";
--Also tried the below...
CREATE TABLE book_master OF XMLTYPE
XMLTYPE STORE AS SECUREFILE BINARY XML
VIRTUAL COLUMNS
isbn_nbr AS ( XmlCast(
XmlQuery('declare namespace plh="http://www.mrbook.com/BookData/Vers1/Header";
declare namespace bk_invt="www.mrbook.com/BookData/Vers1/InventoryData";
/bk_invt:BK_INVT/plh:HDR/plh:ISBN_NBR'
PASSING object_value RETURNING CONTENT) AS VARCHAR2(64)) ),
book_id AS ( XmlCast(
XmlQuery('declare namespace plh="http://www.mrbook.com/BookData/Vers1/Header";
declare namespace invtdata="http://www.mrbook.com/BookData/Vers1/InventoryData";
/bk_invt:BK_INVT/plh:HDR/plh:BOOK_ID'
PASSING object_value RETURNING CONTENT) AS VARCHAR2(64)) )
Here is the code that inserts into the first table:
private static final String INS_MRBOOK_RAW =
"INSERT INTO MRBOOK_RAW " +
"(id, bk_invt, last_modified_ts, created_date) " +
"VALUES (?, ?, ?, ?)";
private static final String UPD_MRBOOK_RAW =
"UPDATE MRBOOK_RAW " +
"SET " +
"bk_invt = ?, " +
"last_modified_ts = ? " +
"WHERE id = ?";
protected void updateBookRaw(BookRecord record, Connection con)
PreparedStatement stmt = null;
SQLXML sqlxml = null;
Timestamp now = new Timestamp(System.currentTimeMillis());
try
stmt = con.prepareStatement(UPD_MRBOOK_RAW);
sqlxml = con.createSQLXML();
DOMResult result = sqlxml.setResult(DOMResult.class);
result.setNode(record.getExistingInvtData());
stmt.setSQLXML(1, sqlxml);
stmt.setTimestamp(2, now);
stmt.setBytes(3, record.getId());
stmt.executeUpdate();
catch(SQLException e)
throw new RuntimeException(e);
finally
if(sqlxml != null)
try
sqlxml.free();
catch(SQLException e)
log.error("Unable to free SQLXML!", e);
if(stmt != null)
try
stmt.close();
catch(SQLException e)
log.error("Unable to close statement!", e);
protected void insertBookRaw(BookRecord record, Connection con)
PreparedStatement stmt = null;
SQLXML sqlxml = null;
Timestamp now = new Timestamp(System.currentTimeMillis());
XMLDocument bookDoc = parser.getInvtDataDoc(record.getNewBook());
try
stmt = con.prepareStatement(INS_MRBOOK_RAW);
sqlxml = con.createSQLXML();
DOMResult domResult = sqlxml.setResult(DOMResult.class);
domResult.setNode(bookDoc);
stmt.setBytes(1, record.getId());
stmt.setSQLXML(2, sqlxml);
stmt.setTimestamp(3, now);
stmt.setTimestamp(4, now);
stmt.executeUpdate();
catch(SQLException e)
throw new RuntimeException(e);
finally
if(sqlxml != null)
try
sqlxml.free();
catch(SQLException e)
log.error("Unable to free SQLXML object!", e);
if(stmt != null)
try
stmt.close();
catch(SQLException e)
log.error("Unable to close statement!", e);
I've tried every storage method possible; CLOBs, Binary XMLType, and structured storage, but I just cannot get the application to go faster than 7 records/second.
I understand that this may or may not be an XMLType question, but I don't know where to start. From everything above, it looks like I should be getting good performance inserting and updating XMLType records; and I do indeed get pretty good performance from retrieval, but not from insert or update. Does anyone have any suggestions on what I might try or a reference I might look at to start?Perhaps a more specific question... should I use PreparedStatements with SQLXML or should I use the OracleXMLSave class? Are SQLXML types batchable under Oracle?
-
Sys.Xmltype.Createxml performance
Hello all,
I have these two functions,these functions are present in a package and this package is being called from .net code.There is a lot of performance issue with this code,It is taking 27 minutes for inserting 1000 rows,please help me fine tune this piece of code.And also there is a before insert trigger for the table XXXXXX
since we are using the concept of VPD here
There are close to 14000 rows to be inserted,please help.
Database version
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
CORE 10.2.0.5.0 Production
TNS for Solaris: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production
Procedure Some_Information(in_Some_Details In Clob, in_Batch_Id In Varchar2, in_Modified_User_Uid In Varchar2, in_Modified_Date In Varchar2, out_Status Out Varchar2, out_Error Out Varchar2)
As
Begin
Xml_Type:=Sys.Xmltype.Createxml(in_Some_Details);
Insert Into XXXXXX(I_Batch_Id,I_Client_Account_Id,V_Client_Legal_Name,
V_Old_Office_Code, V_Old_Office_Business_Name,V_New_Office_Code,V_New_Office_Business_Name,
V_Old_Cost_Center_Code,V_Old_Cost_Center_Name,V_New_Cost_Center_Code, V_New_Cost_Center_Name,
V_Client_Status,D_Client_Inactivation_Date,V_Select_Ynflag,
V_Replace_Ynflag,V_Replace_All_Policy_Ynflag,V_Replace_All_Service_Ynflag,
I_Created_By_Uid,I_Modified_By_Uid,
D_Created_Timestamp,D_Modified_Timestamp,
V_Batch_Status,D_Pol_Eff_Date_From,D_Pol_Eff_Date_To
(Select in_Batch_Id, A.CLIENT_ACCOUNT_ID, A.CLIENT_LEGAL_NAME, A.OLD_OFFICE_CODE, A.OLD_OFFICE_BUSINESS_NAME,
A.NEW_OFFICE_CODE, A.NEW_OFFICE_BUSINESS_NAME, A.OLD_COST_CENTER_CODE, A.OLD_COST_CENTER_NAME,
A.NEW_COST_CENTER_CODE, A.NEW_COST_CENTER_NAME, A.CLIENT_STATUS,
CASE
WHEN A.CLIENT_INACTIVATION_DATE =' ' THEN NULL
ELSE To_Date(A.CLIENT_INACTIVATION_DATE,'DD/MM/YYYY')
END ,
A.SELECT_FLAG, A.REPLACE_FLAG, A.REPLACE_ALL_POLICY_FLAG, A.REPLACE_ALL_SERVICE_FLAG,
in_Modified_User_Uid,in_Modified_User_Uid,
To_Date(in_Modified_Date,'yyyyMMddhh24miss'),To_Date(in_Modified_Date,'yyyyMMddhh24miss'),'A',
CASE
WHEN A.POL_EFF_DATE_FROM =' ' THEN NULL
ELSE To_Date(A.POL_EFF_DATE_FROM,'DD/MM/YYYY')
END ,
CASE
WHEN A.POL_EFF_DATE_TO =' ' THEN NULL
ELSE To_Date(A.POL_EFF_DATE_TO,'DD/MM/YYYY')
END
From (
SELECT
(CLIDETAIL.EXTRACT('//InformationSet/I_CLIENT_ACCOUNT_ID/text()').getstringval()) as CLIENT_ACCOUNT_ID,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_CLIENT_LEGAL_NAME/text()').getstringval()) as CLIENT_LEGAL_NAME,
(CLIDETAIL.EXTRACT('//InformationSet/V_OLD_OFFICE_CODE/text()').getstringval()) as OLD_OFFICE_CODE,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_OLD_OFFICE_NAME/text()').getstringval()) as OLD_OFFICE_BUSINESS_NAME,
(CLIDETAIL.EXTRACT('//InformationSet/V_NEW_OFFICE_CODE/text()').getstringval()) as NEW_OFFICE_CODE,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_NEW_OFFICE_NAME/text()').getstringval()) as NEW_OFFICE_BUSINESS_NAME,
(CLIDETAIL.EXTRACT('//InformationSet/V_OLD_COSTCENTER_CODE/text()').getstringval()) as OLD_COST_CENTER_CODE,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_OLD_COSTCENTER_NAME/text()').getstringval()) as OLD_COST_CENTER_NAME,
(CLIDETAIL.EXTRACT('//InformationSet/V_NEW_COSTCENTER_CODE/text()').getstringval()) as NEW_COST_CENTER_CODE,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_NEW_COSTCENTER_NAME/text()').getstringval()) as NEW_COST_CENTER_NAME,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_CLIENT_STATUS/text()').getstringval()) as CLIENT_STATUS,
(CLIDETAIL.EXTRACT('//InformationSet/V_CLIENT_INACTIVATION_DATE/text()').getstringval()) as CLIENT_INACTIVATION_DATE,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_SELECT_FLAG/text()').getstringval()) as SELECT_FLAG,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_REPLACE_FLAG/text()').getstringval()) as REPLACE_FLAG,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_REPLACE_ALL_POLICY_FLAG/text()').getstringval()) as REPLACE_ALL_POLICY_FLAG,
Escape_Chars(CLIDETAIL.EXTRACT('//InformationSet/V_REPLACE_ALL_SERVICE_FLAG/text()').getstringval()) as REPLACE_ALL_SERVICE_FLAG,
(CLIDETAIL.EXTRACT('//InformationSet/V_POL_EFF_DATE_FROM/text()').getstringval()) as POL_EFF_DATE_FROM,
(CLIDETAIL.EXTRACT('//InformationSet/V_POL_EFF_DATE_TO/text()').getstringval()) as POL_EFF_DATE_TO
FROM TABLE(XMLSEQUENCE(Xml_Type.EXTRACT('//NewDataSet/InformationSet')))CLIDETAIL
) A
Where Not Exists (Select 1 From XXXXX1 M Where M.I_Batch_Id=in_Batch_Id And M.I_Client_Account_Id=A.Client_Account_Id)
out_Status:='0';
out_Error:='No Error 2';
dbms_output.put_line(out_Status);
EXCEPTION WHEN OTHERS THEN
out_Status:='100';
out_Error:= SQLERRM;
End;
Function Escape_Chars(in_Details Varchar2) Return Varchar2 Is
Begin
If Replace(Replace(Replace(Replace(Replace(Trim(in_Details),
''||'&'||' amp;',''||'&'||''),
''||'&'||' quot;','"'),
''||'&'||' lt;','<'),
''||'&'||' gt;','>'),
''||'&'||' apos;',''''
) = '' Then
Return Null;
Else
Return Replace(Replace(Replace(Replace(Replace(Trim(in_Details),
''||'&'||'amp;',''||'&'||''),
''||'&'||'quot;','"'),
''||'&'||'lt;','<'),
''||'&'||'gt;','>'),
''||'&'||'apos;',''''
End If;
End;Hello Marco,
I am a novice in Oracle with xml,please help me out with the following question listed in the points below
1) re-write the whole
From (
SELECT (CLIDETAIL.EXTRACT('//InformationSet/I_CLIENT_ACCOUNT_ID/text()').getstringval()) as CLIENT_ACCOUNT_ID,
Escape
bit to 1 XMLTABLE statement, if not only you will be easily see issues and/or get rid of all the clutter via "extract"
Point 1 I am exploring it,since I do not know anything about XMLTABLE.
2) Use the full XPath path in this statement - do not use // everywhere in the statement (this alone will be drastically improve your performance).
I have made the change mentioned in point 2 except for this section in the previous post,please let me know if i have to make the change here also,
FROM TABLE(XMLSEQUENCE(Xml_Type.EXTRACT('//NewDataSet/InformationSet')))
My Xml will be of the format
<NewDataSet>
<InformationSet>
<I_CLIENT_ACCOUNT_ID>Some value</I_CLIENT_ACCOUNT_ID>
</NewDataSet>
</InformationSet>
3) Do not use the OO notation. eg. "user.table.xmltype.extract.operator" but the supported notation, eg. "extract(user.table.xmltype, '$XPath', '$namspce').operator"
Point 3 I have made the changes
4) Do not use XML/SQL operators anymore, they will be deprecated/desupported in future versions (11, 12, xx). Use the offcial W3 XML standards, in the case XQuery alternatives like XMLTABLE. If not only they do already support XPath V2 while the XML/SQL stuff only supports XPath V1.
Point 4 can you please elaborate on XML/SQL operators that I am using in my code,so sorry this is dumb but still.
5) escape handling can also be done by a by Oracle supported function in package DBMS_XMLGEN (convert? and other procedures/functions), why write your own (would something like a regular expression comparison etc not be easier instead of replace(replace(replace...)
Thank you very much,I have handled the point 5 by using the DBMS_XMLGEN.convert -
The simplest way to get more performance on select on xmltype column?
We have a table with xmltype column:
CREATE TABLE "TK"."PLAN_2" ("UNID" NUMBER NOT
NULL,
"XMLSTRING" "TK"."XMLTYPE",
CONSTRAINT "SYS_C001142583" PRIMARY KEY("UNID")
USING INDEX
TABLESPACE "TX"
STORAGE ( INITIAL 64K NEXT 0K MINEXTENTS 1 MAXEXTENTS
2147483645 PCTINCREASE 0) PCTFREE 10 INITRANS 2 MAXTRANS 255)
The data in column xmlstring looks like this:
<Agent>
<OP End="2520000" Id="001_8232_0_91" Origin="Autos" Quantity="1.0 ea" Start="2520000">
<OSP Key="ADM_ID" String="001_8232_0" />
<OSP Key="AddAutoNr" String="0" />
<OSP Key="CURRENT_STATE" String="Tages-Vorgabe" />
<OLP Key="ChUser">
<OIP Key="(T_SP) test2" Long="1218125408541" />
<OIP Key="(T_SP) admin" Long="1219071385346" />
<OIP Key="(T_SP) test2" Long="1237540381906" />
</OLP>
<OSP Key="Debicode" String="9903" />
<OSP Key="Resource" String="SBN" />
<OSP Key="TrafficDay" String="91" />
<OSP Key="AutoNrSchema" String="001" />
<OSP Key="AutoNumber" String="8232" />
<OPE End="0" Id="Prod" Origin="Autos|Prod" Start="0">
<OProd Duration="0" End="0" Id="Produce" OriginDirect="Autos|Prod|Produce" Quantity="1.0 ea" Start="0" Type="Produce">
<OSP Key="RESelection.Parameter" String="Resource" />
<Resource Id="Autos" />
<Alloc From="OP|001_8232_0_91|Prod|Produce" Id="" Quantity="1.0 ea" To="CO|001_8232_0_91|001_8232_0_91" Type="PRODUCEREQ_TO_CONSUMEREQ" />
</OProd>
</OPE>
<OPE End="2520000" Id="Step_0" Origin="Autos|Step" Start="0">
<OQP Key="Delay" Overridden="true" Quantity="0.0 s" />
<OQP Key="Distance" Quantity="44.84 km" />
<OQP Key="Duration" Quantity="2520.0 s" />
<OQP Key="Fahrt" Quantity="2520.0 s" />
<OSP Key="From" String="BS" />
<OSP Key="I1" String="0" />
<OSP Key="PLACE" String="1" />
<OQP Key="StartDelay" Overridden="true" Quantity="0.0 s" />
<OQP Key="TWait" Overridden="true" Quantity="0.0 s" />
<OSP Key="To" String="OL" />
<OUse Duration="2520000" End="2520000" Id="LStep_0" Name="L" OriginDirect="Autos|Step|LStep" Quantity="1.0 ea" Start="0" Type="Step">
<OSP Key="I2" String="0" />
<OIP Key="LPOSITION" Long="1" Overridden="true" />
<OSP Key="PLACE" String="1" />
<OQP Key="Wait" Overridden="true" Quantity="0.0 s" />
<Resource Id="vs_RABe525_13" />
</OUse>
<OUse Duration="480000" End="0" Id="LPre_0" Name="L" OriginDirect="Autos|Step|LPre" Quantity="1.0 ea" Start="-480000" Type="Pre">
<OQP Key="Fahrbereit" Overridden="true" Quantity="2 min" />
<OSP Key="From" Overridden="true" String="BS" />
<OSP Key="I2" String="0" />
<OSP Key="PLACE" String="1" />
<OSP Key="StepIndex" String="0" />
<OSP Key="To" Overridden="true" String="BS" />
<OQP Key="Vorbereitung" Overridden="true" Quantity="6 min" />
<Resource Id="vs_RABe525_13" />
</OUse>
<OUse Duration="600000" End="3120000" Id="LPost_0" Name="L" OriginDirect="Autos|Step|LPost" Quantity="1.0 ea" Start="2520000" Type="Post">
<OQP Key="Abstellzeit" Overridden="true" Quantity="4 min" />
<OSP Key="From" Overridden="true" String="OL" />
<OSP Key="I2" String="0" />
<OQP Key="Nachbereitung" Overridden="true" Quantity="6 min" />
<OSP Key="PLACE" String="1" />
<OSP Key="StepIndex" String="0" />
<OSP Key="To" Overridden="true" String="OL" />
<Resource Id="vs_RABe525_13" />
</OUse>
<OUse Duration="2520000" End="2520000" Id="FStep_0" Name="F" OriginDirect="Autos|Step|FStep" Quantity="1.0 ea" Start="0" Type="Step">
<OSP Key="I2" String="0" />
<OSP Key="PLACE" String="1" />
<OQP Key="Wait" Overridden="true" Quantity="0.0 s" />
<Resource Id="ps_P112" />
</OUse>
<OUse Duration="480000" End="0" Id="FPre_0" Name="F" OriginDirect="Autos|Step|FPre" Quantity="1.0 ea" Start="-480000" Type="Pre">
<OQP Key="Fahrbereit" Overridden="true" Quantity="2 min" />
<OSP Key="From" Overridden="true" String="BS" />
<OSP Key="I2" String="0" />
<OSP Key="PLACE" String="1" />
<OSP Key="StepIndex" String="0" />
<OQP Key="Taxi" Overridden="true" Quantity="0 s" />
<OSP Key="To" Overridden="true" String="BS" />
<OQP Key="Vorbereitung" O verridden="true" Quantity="6 min" />
<OQP Key="Wegzeit" Overridden="true" Quantity="0 s" />
<Resource Id="ps_P112" />
</OUse>
<OUse Duration="600000" End="3120000" Id="FPost_0" Name="F" OriginDirect="Autos|Step|FPost" Quantity="1.0 ea" Start="2520000" Type="Post">
<OQP Key="Abstellzeit" Overridden="true" Quantity="4 min" />
<OSP Key="From" Overridden="true" String="OL" />
<OSP Key="I2" String="0" />
<OQP Key="Nachbereitung" Overridden="true" Quantity="6 min" />
<OSP Key="PLACE" String="1" />
<OSP Key="StepIndex" String="0" />
<OQP Key="Taxi" Overridden="true" Quantity="0 s" />
<OSP Key="To" Overridden="true" String="OL" />
<OQP Key="Wegzeit" Overridden="true" Quantity="0 s" />
<Resource Id="ps_P112" />
</OUse>
</OPE>
</OP>
</Agent>
We try to select:
SELECT UNID, extractValue(value(OUSE_XMLSTRING), '/OUse/Resource/@Id') OUSE_RESOURCE,
extract(XMLSTRING, '/Agent/OP/OSP[@Key = "TrafficDay"]/@String') TT_DAY,
extract(XMLSTRING, '/Agent/OP/@Start') OP_START,
extract(XMLSTRING, '/Agent/OP/@End') OP_END,
extract(XMLSTRING, '/Agent/OP/OSP[@Key = "ADM_ID"]/@String') ADM_ID,
extractValue(value(OUSE_XMLSTRING), '/OUse/@Start') OUSE_START,
extractValue(value(OUSE_XMLSTRING), '/OUse/@End') OUSE_END
FROM tk.plan_2, table(XMLSequence(extract(XMLSTRING, '//Agent/OP//OPE//OUse'))) OUSE_XMLSTRING
where extractValue(value(OUSE_XMLSTRING), '/OUse/Resource/@Id') = 'vs_RABe525_13';
with this explain plan:
PLAN_TABLE_OUTPUT
Plan hash value: 3476314316
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 101 | 22018 | 31 (0)| 00:00:01 |
| 1 | NESTED LOOPS | | 101 | 22018 | 31 (0)| 00:00:01 |
| 2 | TABLE ACCESS FULL | PLAN_2 | 2 | 432 | 2 (0)| 00:00:01 |
|* 3 | COLLECTION ITERATOR PICKLER FETCH| XMLSEQUENCEFROMXMLTYPE | | | | |
Predicate Information (identified by operation id):
3 - filter(EXTRACTVALUE(VALUE(KOKBF$),'/OUse/Resource/@Id')='vs_RABe525_13')
We want to select on the 'ID', which occurs more than once in the xmlstring and the table gonna be big, so we think we need some kind of index on the ID-Identifier. What will be the best way to do this?Which version of Oracle (4 digits)?
If 10.2 or greater, look into using XMLTable and that is the replacement for the table(XMLSequence(extract()) approach. Also, avoid the use of // unless you really need it. I doubt it will make a difference in your situation but just a good performance approach in general.
We want to select on the 'ID', which occurs more than once in the xmlstringI assume you are going to want the count(...) > 1 from the XML to tell you which you are selecting?
I also have questions about what that XMLType is being stored as but that depends upon what your version is regarding what storage options you have.
Edited by: A_Non on Jun 7, 2010 10:55 AM
Forgot to add, look in the FAQ (under your sign-in name on the upper right) for how to use the tag to better format your posts. -
Is this query on XMLTYPE the most performant ?
Hello,
We are in 11gR2
and we built a process for loading XML files that I think are very complex (I hope so)
We about about 600 similar XML files to load every night.
The XML file is saved under a XMLTYPE table and we attached a XSD Schema on it.
One of the queries we built for selecting XMLTYPE data uses several outer joins on the XML. And I think I should find a way for increasing performance on the query
Here is the details (sometimes huge in volume) :
1) The query I would like to improve :
Depending on data in the XML file, the SELECT duration can go from 3 minutes to more than 4 hours !
select DISTINCT UPPER(t2.ressource_code)
, CASE WHEN ( t5.isWorkDay = 'false' AND t5.day IS NOT NULL
AND ( to_date( replace(t5.day, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS')
BETWEEN to_date( replace(t4.taux_start_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS')
AND to_date( replace(t4.taux_end_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS'))
THEN to_date( replace(t5.day, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS')
ELSE to_date( replace(t4.taux_start_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS') END day_start
, CASE WHEN ( t5.isWorkDay = 'false' AND t5.day IS NOT NULL
AND ( to_date( replace(t5.day, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS')
BETWEEN to_date( replace(t4.taux_start_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS')
AND to_date( replace(t4.taux_end_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS'))
THEN to_date( replace(t5.day, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS')+1
ELSE to_date( replace(t4.taux_end_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS') END day_finish
, DECODE( t5.isWorkDay, NULL, CASE WHEN (to_number( t4.rate)>0) THEN 'true' ELSE 'false' END, t5.isWorkDay) isWorkDay
, DECODE( t5.isWorkDay, NULL, TO_CHAR( to_date( replace(t4.taux_start_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS'), 'HH24:MI:SS'), t6.shift_start) shift_start
, DECODE( t5.isWorkDay, NULL, TO_CHAR( to_date( replace(t4.taux_end_date, 'T', ' '), 'YYYY-MM-DD HH24:MI:SS'), 'HH24:MI:SS'), t6.shift_finish) shift_finish
, DECODE( UPPER(t5.dayOfWeek), 'MON', 'LUNDI', 'TUE', 'MARDI', 'WED', 'MERCREDI', 'THU', 'JEUDI', 'FRI', 'VENDREDI', 'SAT', 'SAMEDI', 'SUN', 'DIMANCHE', NULL, NULL) dayOfWeek
, SYSDATE
, t1.tache_uid, t1.tache_code, t1.tache_desc
, t3.curve_name
, to_number( t4.rate) activity
FROM WORKBENCH_PROJECT_TABLE t
, xmltable( xmlNamespaces( default 'http://www.oracle.com/xsd/projet.xsd')
, '/WORKBENCH_PROJECT/Projects/Project/Tasks/Task' passing OBJECT_VALUE
columns tache_UID varchar2(70) path '@UID'
, tache_code varchar2(150) path '@taskID'
, tache_desc varchar2(150) path '@name'
, activites_xml xmltype path 'Assignments'
) t1
, xmltable( xmlNamespaces( default 'http://www.oracle.com/xsd/projet.xsd')
, '/Assignments/*' passing t1.activites_xml
columns ressource_code varchar2(50) path '@resourceID'
, curves_xml xmltype path 'Curve'
) t2
, xmltable( xmlNamespaces( default 'http://www.oracle.com/xsd/projet.xsd')
, '/Curve' passing t2.curves_xml
columns curve_name varchar2(50) path '@name'
, segments_xml xmltype path 'Segments'
) t3
, xmltable( xmlNamespaces( default 'http://www.oracle.com/xsd/projet.xsd')
, '/Segments/*' passing t3.segments_xml
columns rate varchar2(50) path '@rate'
, taux_start_date varchar2(20) path '@start'
, taux_end_date varchar2(20) path '@finish'
, calendar_days_xml xmltype path 'Calendar/Days'
) t4
, xmltable( xmlNamespaces( default 'http://www.oracle.com/xsd/projet.xsd')
, '/Days/*' passing t4.calendar_days_xml
columns dayOfWeek varchar2(50) path '@dayOfWeek'
, isWorkDay varchar2(20) path '@isWorkDay'
, DAY varchar2(20) path '@start'
, shift_xml xmltype path 'Shifts'
) (+) t5
, xmltable( xmlNamespaces( default 'http://www.oracle.com/xsd/projet.xsd')
, 'Shifts/Shift' passing t5.shift_xml
columns shift_start varchar2(20) path '@start'
, shift_finish varchar2(20) path '@finish'
) (+) t6; Here is the XSD schema :
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xdb="http://xmlns.oracle.com/xdb"
xmlns="http://www.oracle.com/xsd/projet.xsd"
targetNamespace="http://www.oracle.com/xsd/projet.xsd"
elementFormDefault="unqualified"
xdb:storeVarrayAsTable="true">
<xsd:element name="WORKBENCH_PROJECT" xdb:defaultTable="WORKBENCH_PROJECT_TABLE">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="BaseCalendars"/>
<xsd:element ref="PoolResources"/>
<xsd:element ref="Projects"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="BaseCalendars" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Calendar" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="PoolResources" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="PoolResource" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="PoolResource" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Calendar"/>
<xsd:element ref="Curve"/>
<xsd:element ref="Notes" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="category" type="xsd:string"/>
<xsd:attribute name="emailAddress" type="xsd:string"/>
<xsd:attribute name="employmentType" type="xsd:integer"/>
<xsd:attribute name="description" type="xsd:string"/>
<xsd:attribute name="firstName" type="xsd:string"/>
<xsd:attribute name="fullName" type="xsd:string"/>
<xsd:attribute name="hireDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="inputTypeCode" type="xsd:integer"/>
<xsd:attribute name="isActive" type="xsd:boolean"/>
<xsd:attribute name="isExternal" type="xsd:boolean"/>
<xsd:attribute name="isRole" type="xsd:boolean"/>
<xsd:attribute name="lastName" type="xsd:string"/>
<xsd:attribute name="managerUserName" type="xsd:string"/>
<xsd:attribute name="modBy" type="xsd:string"/>
<xsd:attribute name="openForTimeEntry" type="xsd:boolean"/>
<xsd:attribute name="resourceId" type="xsd:string"/>
<xsd:attribute name="resourceType" type="xsd:integer"/>
<xsd:attribute name="roleID" type="xsd:string"/>
<xsd:attribute name="terminationDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="trackMode" type="xsd:integer"/>
<xsd:attribute name="userFlag1" type="xsd:boolean"/>
<xsd:attribute name="userFlag2" type="xsd:boolean"/>
<xsd:attribute name="userNumber1" type="xsd:decimal"/>
<xsd:attribute name="userNumber2" type="xsd:decimal"/>
<xsd:attribute name="userText1" type="xsd:string"/>
<xsd:attribute name="userText2" type="xsd:string"/>
<xsd:attribute name="userText3" type="xsd:string"/>
<xsd:attribute name="userText4" type="xsd:string"/>
<xsd:attribute name="userText5" type="xsd:string"/>
<xsd:attribute name="userText6" type="xsd:string"/>
<xsd:attribute name="userText7" type="xsd:string"/>
<xsd:attribute name="userText8" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Projects" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Project" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Project" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Baselines" minOccurs="0"/>
<xsd:element ref="Notes" minOccurs="0"/>
<xsd:element ref="Resources" minOccurs="0"/>
<xsd:element ref="Tasks" minOccurs="0"/>
<xsd:element ref="BaselineDetails" minOccurs="0"/>
<xsd:element ref="Dependencies" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="UID"/>
<xsd:attribute name="active" type="xsd:boolean"/>
<xsd:attribute name="asOf" type="xsd:NMTOKEN"/>
<xsd:attribute name="approved" type="xsd:boolean"/>
<xsd:attribute name="baseFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseTime" type="xsd:NMTOKEN"/>
<xsd:attribute name="budget" type="xsd:double"/>
<xsd:attribute name="closed" type="xsd:boolean"/>
<xsd:attribute name="cpmType" type="xsd:integer"/>
<xsd:attribute name="department" type="xsd:string"/>
<xsd:attribute name="description" type="xsd:string"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="finishImposed" type="xsd:boolean"/>
<xsd:attribute name="format" type="xsd:integer"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="name" type="xsd:string"/>
<xsd:attribute name="openForTimeEntry" type="xsd:boolean"/>
<xsd:attribute name="priority" type="xsd:integer"/>
<xsd:attribute name="projectType" type="xsd:integer"/>
<xsd:attribute name="program" type="xsd:boolean"/>
<xsd:attribute name="projectID" type="xsd:string"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="startImposed" type="xsd:boolean"/>
<xsd:attribute name="status" type="xsd:integer"/>
<xsd:attribute name="trackMode" type="xsd:integer"/>
<xsd:attribute name="userText1" type="xsd:string"/>
<xsd:attribute name="userText2" type="xsd:string"/>
<xsd:attribute name="userText3" type="xsd:string"/>
<xsd:attribute name="userText4" type="xsd:string"/>
<xsd:attribute name="userText5" type="xsd:string"/>
<xsd:attribute name="userText6" type="xsd:string"/>
<xsd:attribute name="userText7" type="xsd:string"/>
<xsd:attribute name="userText8" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Baselines" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Baseline" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Baseline" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="code" type="xsd:string"/>
<xsd:attribute name="current" type="xsd:boolean"/>
<xsd:attribute name="description"/>
<xsd:attribute name="name" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Resources" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Resource" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Resource" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Curve" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="BaselineDetails" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
<xsd:attribute name="availFrom" type="xsd:NMTOKEN"/>
<xsd:attribute name="availTo" type="xsd:NMTOKEN"/>
<xsd:attribute name="bookingStatus" type="xsd:integer"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="openForTimeEntry" type="xsd:boolean"/>
<xsd:attribute name="requestStatus" type="xsd:integer"/>
<xsd:attribute name="resourceID" type="xsd:string"/>
<xsd:attribute name="roleID" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Tasks" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Task" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Task" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Assignments" minOccurs="0"/>
<xsd:element ref="BaselineDetails" minOccurs="0"/>
<xsd:element ref="Constraints" minOccurs="0"/>
<xsd:element ref="Notes" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="UID"/>
<xsd:attribute name="taskID" type="xsd:string"/>
<xsd:attribute name="baseFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseTime" type="xsd:NMTOKEN"/>
<xsd:attribute name="baselineDuration" type="xsd:decimal"/>
<xsd:attribute name="category" type="xsd:string"/>
<xsd:attribute name="critical" type="xsd:boolean"/>
<xsd:attribute name="earlyFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="earlyStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="fixed" type="xsd:boolean"/>
<xsd:attribute name="guidelines" type="xsd:string"/>
<xsd:attribute name="key" type="xsd:boolean"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="lateFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="lateStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="locked" type="xsd:boolean"/>
<xsd:attribute name="methodID" type="xsd:string"/>
<xsd:attribute name="milestone" type="xsd:boolean"/>
<xsd:attribute name="name" type="xsd:string"/>
<xsd:attribute name="outlineLevel" type="xsd:integer"/>
<xsd:attribute name="percComp" type="xsd:decimal"/>
<xsd:attribute name="priority" type="xsd:string"/>
<xsd:attribute name="proxy" type="xsd:boolean"/>
<xsd:attribute name="shortName" type="xsd:string"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="status" type="xsd:integer"/>
<xsd:attribute name="summary" type="xsd:boolean"/>
<xsd:attribute name="totalSlack" type="xsd:double"/>
<xsd:attribute name="unplanned" type="xsd:boolean"/>
<xsd:attribute name="userText1" type="xsd:string"/>
<xsd:attribute name="userText2" type="xsd:string"/>
<xsd:attribute name="userText3" type="xsd:string"/>
<xsd:attribute name="userText4" type="xsd:string"/>
<xsd:attribute name="userText5" type="xsd:string"/>
<xsd:attribute name="userText6" type="xsd:string"/>
<xsd:attribute name="userText7" type="xsd:string"/>
<xsd:attribute name="userText8" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Assignments" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Assignment" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Assignment" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Curve" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="BaselineDetails" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="actualThrough" type="xsd:NMTOKEN"/>
<xsd:attribute name="actualWork" type="xsd:double"/>
<xsd:attribute name="baselineWork" type="xsd:double"/>
<xsd:attribute name="estMax" type="xsd:double"/>
<xsd:attribute name="estPattern" type="xsd:integer"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="pendActSum" type="xsd:double"/>
<xsd:attribute name="pendEstSum" type="xsd:double"/>
<xsd:attribute name="remainingWork" type="xsd:double"/>
<xsd:attribute name="resourceID" type="xsd:string"/>
<xsd:attribute name="roleID" type="xsd:string"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="status" type="xsd:integer"/>
<xsd:attribute name="unplanned" type="xsd:boolean"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Constraints" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Constraint" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Constraint" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="time" type="xsd:NMTOKEN"/>
<xsd:attribute name="type" type="xsd:integer"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Notes" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Note" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Note" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="category" type="xsd:string"/>
<xsd:attribute name="content" type="xsd:string"/>
<xsd:attribute name="createdBy" type="xsd:string"/>
<xsd:attribute name="createdDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Dependencies" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Dependency" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Dependency" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="lag" type="xsd:decimal"/>
<xsd:attribute name="lagType" type="xsd:integer"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="predecessorID" type="xsd:string"/>
<xsd:attribute name="predecessorUID"/>
<xsd:attribute name="startFinishType" type="xsd:integer"/>
<xsd:attribute name="successorID" type="xsd:string"/>
<xsd:attribute name="successorUID"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Calendar" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Days" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="baseCalendar"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="name"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Days" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Day" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Day" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Shifts" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="dayOfWeek" type="xsd:string"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="isWorkDay" type="xsd:boolean"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Shifts" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Shift" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Shift" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Curve" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Segments" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="default" type="xsd:double"/>
<xsd:attribute name="name" type="xsd:string"/>
<xsd:attribute name="type" type="xsd:integer"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Segments" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Segment" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Segment" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Calendar" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="rate" type="xsd:double"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="BaselineDetails" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="BaselineDetail" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="BaselineDetail" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Curve" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
<xsd:attribute name="baselineCode" type="xsd:string"/>
<xsd:attribute name="costSum" type="xsd:double"/>
<xsd:attribute name="duration" type="xsd:double"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="usageSum" type="xsd:double"/>
</xsd:complexType>
</xsd:element>
</xsd:schema>3) and one of the smallest XML ... (I can send you a bigger one, where you could notice the query duration )
"Your message exceeds the maximum length of 30000 characters."I can email you an XML file, I failed to upload the smallest XML file !!!!
Well, I hope that's clear enough ad that you could provide me help and advices
Thanks a lot in advance,
Olivierconnect / as sysdba
set define on
set timing on
-- Define variables for USERNAME, TABLESPACES and XMLDIR that represents the base directory where a 'xsd' directory
-- exists that contains the called XML schema used in this script to be registered that creates the XMLTYPE OR table
def USERNAME = cap
def PASSWORD = &USERNAME
-- def XMLDIR = 'C:\Temp'
def USER_TABSPACE = USERS
def TEMP_TABSPACE = TEMP
-- End declaritive section
drop user &USERNAME cascade
grant create any directory, drop any directory, connect, resource, create synonym, alter session, create view to &USERNAME identified by &PASSWORD
alter user &USERNAME default tablespace &USER_TABSPACE temporary tablespace &TEMP_TABSPACE
connect &USERNAME/&PASSWORD
-- create or replace directory XMLDIR as '&XMLDIR/xsd'
select * from v$version
DECLARE
V_XMLSCHEMA CLOB := '<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xdb="http://xmlns.oracle.com/xdb"
xmlns="http://www.oracle.com/xsd/projet.xsd"
targetNamespace="http://www.oracle.com/xsd/projet.xsd"
elementFormDefault="unqualified"
xdb:storeVarrayAsTable="true">
<xsd:element name="WORKBENCH_PROJECT" xdb:defaultTable="WORKBENCH_PROJECT_TABLE">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="BaseCalendars"/>
<xsd:element ref="PoolResources"/>
<xsd:element ref="Projects"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="BaseCalendars" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Calendar" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="PoolResources" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="PoolResource" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="PoolResource" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Calendar"/>
<xsd:element ref="Curve"/>
<xsd:element ref="Notes" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="category" type="xsd:string"/>
<xsd:attribute name="emailAddress" type="xsd:string"/>
<xsd:attribute name="employmentType" type="xsd:integer"/>
<xsd:attribute name="description" type="xsd:string"/>
<xsd:attribute name="firstName" type="xsd:string"/>
<xsd:attribute name="fullName" type="xsd:string"/>
<xsd:attribute name="hireDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="inputTypeCode" type="xsd:integer"/>
<xsd:attribute name="isActive" type="xsd:boolean"/>
<xsd:attribute name="isExternal" type="xsd:boolean"/>
<xsd:attribute name="isRole" type="xsd:boolean"/>
<xsd:attribute name="lastName" type="xsd:string"/>
<xsd:attribute name="managerUserName" type="xsd:string"/>
<xsd:attribute name="modBy" type="xsd:string"/>
<xsd:attribute name="openForTimeEntry" type="xsd:boolean"/>
<xsd:attribute name="resourceId" type="xsd:string"/>
<xsd:attribute name="resourceType" type="xsd:integer"/>
<xsd:attribute name="roleID" type="xsd:string"/>
<xsd:attribute name="terminationDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="trackMode" type="xsd:integer"/>
<xsd:attribute name="userFlag1" type="xsd:boolean"/>
<xsd:attribute name="userFlag2" type="xsd:boolean"/>
<xsd:attribute name="userNumber1" type="xsd:decimal"/>
<xsd:attribute name="userNumber2" type="xsd:decimal"/>
<xsd:attribute name="userText1" type="xsd:string"/>
<xsd:attribute name="userText2" type="xsd:string"/>
<xsd:attribute name="userText3" type="xsd:string"/>
<xsd:attribute name="userText4" type="xsd:string"/>
<xsd:attribute name="userText5" type="xsd:string"/>
<xsd:attribute name="userText6" type="xsd:string"/>
<xsd:attribute name="userText7" type="xsd:string"/>
<xsd:attribute name="userText8" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Projects" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Project" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Project" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Baselines" minOccurs="0"/>
<xsd:element ref="Notes" minOccurs="0"/>
<xsd:element ref="Resources" minOccurs="0"/>
<xsd:element ref="Tasks" minOccurs="0"/>
<xsd:element ref="BaselineDetails" minOccurs="0"/>
<xsd:element ref="Dependencies" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="UID"/>
<xsd:attribute name="active" type="xsd:boolean"/>
<xsd:attribute name="asOf" type="xsd:NMTOKEN"/>
<xsd:attribute name="approved" type="xsd:boolean"/>
<xsd:attribute name="baseFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseTime" type="xsd:NMTOKEN"/>
<xsd:attribute name="budget" type="xsd:double"/>
<xsd:attribute name="closed" type="xsd:boolean"/>
<xsd:attribute name="cpmType" type="xsd:integer"/>
<xsd:attribute name="department" type="xsd:string"/>
<xsd:attribute name="description" type="xsd:string"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="finishImposed" type="xsd:boolean"/>
<xsd:attribute name="format" type="xsd:integer"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="name" type="xsd:string"/>
<xsd:attribute name="openForTimeEntry" type="xsd:boolean"/>
<xsd:attribute name="priority" type="xsd:integer"/>
<xsd:attribute name="projectType" type="xsd:integer"/>
<xsd:attribute name="program" type="xsd:boolean"/>
<xsd:attribute name="projectID" type="xsd:string"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="startImposed" type="xsd:boolean"/>
<xsd:attribute name="status" type="xsd:integer"/>
<xsd:attribute name="trackMode" type="xsd:integer"/>
<xsd:attribute name="userText1" type="xsd:string"/>
<xsd:attribute name="userText2" type="xsd:string"/>
<xsd:attribute name="userText3" type="xsd:string"/>
<xsd:attribute name="userText4" type="xsd:string"/>
<xsd:attribute name="userText5" type="xsd:string"/>
<xsd:attribute name="userText6" type="xsd:string"/>
<xsd:attribute name="userText7" type="xsd:string"/>
<xsd:attribute name="userText8" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Baselines" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Baseline" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Baseline" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="code" type="xsd:string"/>
<xsd:attribute name="current" type="xsd:boolean"/>
<xsd:attribute name="description"/>
<xsd:attribute name="name" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Resources" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Resource" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Resource" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Curve" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="BaselineDetails" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
<xsd:attribute name="availFrom" type="xsd:NMTOKEN"/>
<xsd:attribute name="availTo" type="xsd:NMTOKEN"/>
<xsd:attribute name="bookingStatus" type="xsd:integer"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="openForTimeEntry" type="xsd:boolean"/>
<xsd:attribute name="requestStatus" type="xsd:integer"/>
<xsd:attribute name="resourceID" type="xsd:string"/>
<xsd:attribute name="roleID" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Tasks" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Task" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Task" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Assignments" minOccurs="0"/>
<xsd:element ref="BaselineDetails" minOccurs="0"/>
<xsd:element ref="Constraints" minOccurs="0"/>
<xsd:element ref="Notes" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="UID"/>
<xsd:attribute name="taskID" type="xsd:string"/>
<xsd:attribute name="baseFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="baseTime" type="xsd:NMTOKEN"/>
<xsd:attribute name="baselineDuration" type="xsd:decimal"/>
<xsd:attribute name="category" type="xsd:string"/>
<xsd:attribute name="critical" type="xsd:boolean"/>
<xsd:attribute name="earlyFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="earlyStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="fixed" type="xsd:boolean"/>
<xsd:attribute name="guidelines" type="xsd:string"/>
<xsd:attribute name="key" type="xsd:boolean"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="lateFinish" type="xsd:NMTOKEN"/>
<xsd:attribute name="lateStart" type="xsd:NMTOKEN"/>
<xsd:attribute name="locked" type="xsd:boolean"/>
<xsd:attribute name="methodID" type="xsd:string"/>
<xsd:attribute name="milestone" type="xsd:boolean"/>
<xsd:attribute name="name" type="xsd:string"/>
<xsd:attribute name="outlineLevel" type="xsd:integer"/>
<xsd:attribute name="percComp" type="xsd:decimal"/>
<xsd:attribute name="priority" type="xsd:string"/>
<xsd:attribute name="proxy" type="xsd:boolean"/>
<xsd:attribute name="shortName" type="xsd:string"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="status" type="xsd:integer"/>
<xsd:attribute name="summary" type="xsd:boolean"/>
<xsd:attribute name="totalSlack" type="xsd:double"/>
<xsd:attribute name="unplanned" type="xsd:boolean"/>
<xsd:attribute name="userText1" type="xsd:string"/>
<xsd:attribute name="userText2" type="xsd:string"/>
<xsd:attribute name="userText3" type="xsd:string"/>
<xsd:attribute name="userText4" type="xsd:string"/>
<xsd:attribute name="userText5" type="xsd:string"/>
<xsd:attribute name="userText6" type="xsd:string"/>
<xsd:attribute name="userText7" type="xsd:string"/>
<xsd:attribute name="userText8" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Assignments" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Assignment" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Assignment" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Curve" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="BaselineDetails" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="actualThrough" type="xsd:NMTOKEN"/>
<xsd:attribute name="actualWork" type="xsd:double"/>
<xsd:attribute name="baselineWork" type="xsd:double"/>
<xsd:attribute name="estMax" type="xsd:double"/>
<xsd:attribute name="estPattern" type="xsd:integer"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="pendActSum" type="xsd:double"/>
<xsd:attribute name="pendEstSum" type="xsd:double"/>
<xsd:attribute name="remainingWork" type="xsd:double"/>
<xsd:attribute name="resourceID" type="xsd:string"/>
<xsd:attribute name="roleID" type="xsd:string"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="status" type="xsd:integer"/>
<xsd:attribute name="unplanned" type="xsd:boolean"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Constraints" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Constraint" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Constraint" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="time" type="xsd:NMTOKEN"/>
<xsd:attribute name="type" type="xsd:integer"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Notes" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Note" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Note" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="category" type="xsd:string"/>
<xsd:attribute name="content" type="xsd:string"/>
<xsd:attribute name="createdBy" type="xsd:string"/>
<xsd:attribute name="createdDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Dependencies" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Dependency" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Dependency" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="lag" type="xsd:decimal"/>
<xsd:attribute name="lagType" type="xsd:integer"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="predecessorID" type="xsd:string"/>
<xsd:attribute name="predecessorUID"/>
<xsd:attribute name="startFinishType" type="xsd:integer"/>
<xsd:attribute name="successorID" type="xsd:string"/>
<xsd:attribute name="successorUID"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Calendar" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Days" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="baseCalendar"/>
<xsd:attribute name="lastUpdatedBy" type="xsd:string"/>
<xsd:attribute name="lastUpdatedDate" type="xsd:NMTOKEN"/>
<xsd:attribute name="name"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Days" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Day" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Day" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Shifts" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="dayOfWeek" type="xsd:string"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="isWorkDay" type="xsd:boolean"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Shifts" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Shift" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Shift" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Curve" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Segments" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="default" type="xsd:double"/>
<xsd:attribute name="name" type="xsd:string"/>
<xsd:attribute name="type" type="xsd:integer"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="Segments" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Segment" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Segment" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Calendar" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="rate" type="xsd:double"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="BaselineDetails" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="BaselineDetail" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="BaselineDetail" xdb:defaultTable="">
<xsd:complexType xdb:maintainDOM="false">
<xsd:sequence>
<xsd:element ref="Curve" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
<xsd:attribute name="baselineCode" type="xsd:string"/>
<xsd:attribute name="costSum" type="xsd:double"/>
<xsd:attribute name="duration" type="xsd:double"/>
<xsd:attribute name="finish" type="xsd:NMTOKEN"/>
<xsd:attribute name="start" type="xsd:NMTOKEN"/>
<xsd:attribute name="usageSum" type="xsd:double"/>
</xsd:complexType>
</xsd:element>
</xsd:schema>' ;
BEGIN
dbms_xmlschema.registerSchema
schemaurl => 'http://www.oracle.com/xsd/projet.xsd',
schemadoc => V_XMLSCHEMA,
local => TRUE,
genTypes => TRUE,
genBean => FALSE,
genTables => TRUE,
enablehierarchy => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE,
owner => user
END;
/
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