SQLSERVER to ORACLE conversion - Update query

Hi,
I have a query in sqlserver :
UPDATE
netVIEWplus.dbo.DIM_OUC_Latest
SET
OUC = LatestFixed.OUC,
OUC_Desc = LatestFixed.OUC_Desc,
OUC_Level = LatestFixed.OUC_Level,
Parent_OUC = LatestFixed.Parent_OUC,
CC_Type = LatestFixed.CC_Type,
GFR = LatestFixed.GFR,
CORP = LatestFixed.CORP,
SOB = LatestFixed.SOB,
Div_Unit = LatestFixed.Div_Unit,
Div_Desc = LatestFixed.Div_Desc,
L1_OUC = LatestFixed.L1_OUC, L1_DEPT_DESC = LatestFixed.L1_DEPT_DESC,
L2_OUC = LatestFixed.L2_OUC, L2_DEPT_DESC = LatestFixed.L2_DEPT_DESC,
L3_OUC = LatestFixed.L3_OUC, L3_DEPT_DESC = LatestFixed.L3_DEPT_DESC,
L4_OUC = LatestFixed.L4_OUC, L4_DEPT_DESC = LatestFixed.L4_DEPT_DESC,
L5_OUC = LatestFixed.L5_OUC, L5_DEPT_DESC = LatestFixed.L5_DEPT_DESC,
L6_OUC = LatestFixed.L6_OUC, L6_DEPT_DESC = LatestFixed.L6_DEPT_DESC,
L7_OUC = LatestFixed.L7_OUC, L7_DEPT_DESC = LatestFixed.L7_DEPT_DESC,
L8_OUC = LatestFixed.L8_OUC, L8_DEPT_DESC = LatestFixed.L8_DEPT_DESC,
Current_Flag = LatestFixed.Current_Flag,
INF_Div_Unit_Only = LatestFixed.INF_Div_Unit_Only,
INF_DIM_OUC_Id_Used = LatestFixed.DIM_OUC_Id
FROM
netVIEWplus.dbo.DIM_OUC_Latest
INNER JOIN
netVIEWplus.dbo.DIM_OUC HistoryDIM
ON
HistoryDIM.DIM_OUC_Id = netVIEWplus.dbo.DIM_OUC_Latest.DIM_OUC_Id
INNER JOIN
netVIEWplus.dbo.DIM_OUC LatestDIM
ON
LatestDIM.DIM_OUC_ID = HistoryDIM.Latest_Id
INNER JOIN
netVIEWplus.dbo.DIM_OUC LatestFixed
ON
netVIEWplus.dbo.DIM_OUC_Latest.OUC = LatestFixed.OUC
WHERE
LatestDIM.INF_Updateable = 1
AND
LatestFixed.Valid_From =
SELECT MAX(Valid_From)
FROM netVIEWplus.dbo.DIM_OUC
WHERE OUC = LatestFixed.OUC
AND INF_Updateable = 0
Which I want to convert in oracle like below :
UPDATE
netVIEWplus.DIM_OUC_Latest T1
SET (OUC,OUC_Desc,OUC_Level,Parent_OUC,CC_Type,GFR,CORP,SOB,Div_Unit,Div_Desc,L1_OUC,L1_DEPT_DESC,L2_OUC,
L2_DEPT_DESC,L3_OUC,L3_DEPT_DESC,L4_OUC,L4_DEPT_DESC,L5_OUC,L5_DEPT_DESC,L6_OUC,L6_DEPT_DESC,L7_OUC,L7_DEPT_DESC,
L8_OUC,L8_DEPT_DESC,Current_Flag,INF_Div_Unit_Only,INF_DIM_OUC_Id_Used) =
(SELECT LatestFixed.OUC OUC,LatestFixed.OUC_Desc OUC_Desc,
LatestFixed.OUC_Level OUC_Level,LatestFixed.Parent_OUC Parent_OUC,LatestFixed.CC_Type CC_Type,LatestFixed.GFR GFR,
LatestFixed.CORP CORP,LatestFixed.SOB SOB,LatestFixed.Div_Unit Div_Unit,LatestFixed.Div_Desc Div_Desc,
LatestFixed.L1_OUC L1_OUC,LatestFixed.L1_DEPT_DESC L1_DEPT_DESC,LatestFixed.L2_OUC L2_OUC,LatestFixed.L2_DEPT_DESC L2_DEPT_DESC,
LatestFixed.L3_OUC L3_OUC,LatestFixed.L3_DEPT_DESC L3_DEPT_DESC,LatestFixed.L4_OUC L4_OUC,
LatestFixed.L4_DEPT_DESC L4_DEPT_DESC,LatestFixed.L5_OUC L5_OUC,LatestFixed.L5_DEPT_DESC L5_DEPT_DESC,
LatestFixed.L6_OUC L6_OUC,LatestFixed.L6_DEPT_DESC L6_DEPT_DESC,LatestFixed.L7_OUC L7_OUC,
LatestFixed.L7_DEPT_DESC L7_DEPT_DESC,LatestFixed.L8_OUC L8_OUC,LatestFixed.L8_DEPT_DESC L8_DEPT_DESC,
LatestFixed.Current_Flag Current_Flag,LatestFixed.INF_Div_Unit_Only INF_Div_Unit_Only,
LatestFixed.DIM_OUC_Id INF_DIM_OUC_Id_Used
FROM
netVIEWplus.DIM_OUC HistoryDIM,netVIEWplus.DIM_OUC LatestDIM,netVIEWplus.DIM_OUC LatestFixed
where
HistoryDIM.DIM_OUC_Id = T1.DIM_OUC_Id
AND
LatestDIM.DIM_OUC_ID = HistoryDIM.Latest_Id
and
T1.OUC = LatestFixed.OUC
and
LatestFixed.INF_Updateable = 1
AND
LatestFixed.Valid_From =
SELECT MAX(Valid_From)
FROM netVIEWplus.DIM_OUC
WHERE OUC = LatestFixed.OUC
AND INF_Updateable = 0
and rownum=1)
where exists
(SELECT 1
FROM
netVIEWplus.DIM_OUC HistoryDIM,netVIEWplus.DIM_OUC LatestDIM,netVIEWplus.DIM_OUC LatestFixed
where
HistoryDIM.DIM_OUC_Id = T1.DIM_OUC_Id
AND
LatestDIM.DIM_OUC_ID = HistoryDIM.Latest_Id
and
T1.OUC = LatestFixed.OUC
and
LatestFixed.INF_Updateable = 1
AND
LatestFixed.Valid_From =
SELECT MAX(Valid_From)
FROM netVIEWplus.DIM_OUC
WHERE OUC = LatestFixed.OUC
AND INF_Updateable = 0
Problem is, it is taking long time to execute in oracle. Find the explain plan of the oracle query :
Operation     Object Name     Rows     Bytes     Cost     Object Node     In/Out     PStart     PStop
UPDATE STATEMENT Optimizer Mode=ALL_ROWS          1           19 M
UPDATE     NETVIEWPLUS.DIM_OUC_LATEST
HASH JOIN SEMI          1      216      19 M
TABLE ACCESS FULL     NETVIEWPLUS.DIM_OUC_LATEST     299 K     55 M     1550
VIEW     SYS.VW_SQ_3     4 G     90G     12 M
HASH JOIN          4 G     208G     12 M
TABLE ACCESS FULL     NETVIEWPLUS.DIM_OUC     298 K     2 M     2009
MERGE JOIN CARTESIAN          4 G     167G     1664177
HASH JOIN          14 K     516 K     4873
TABLE ACCESS FULL     NETVIEWPLUS.DIM_OUC     53 K     945 K     2030
VIEW     SYS.VW_SQ_2     81 K     1 M     2841
SORT GROUP BY          81 K     1 M     2841
TABLE ACCESS FULL     NETVIEWPLUS.DIM_OUC     245 K     4 M     2030
BUFFER SORT          298 K     1 M     1664177
INDEX FAST FULL SCAN     NETVIEWPLUS.DIM_OUC_PK     298 K     1 M     113
COUNT STOPKEY
NESTED LOOPS          1      253      4062
NESTED LOOPS          1      235      2032
NESTED LOOPS          1      15      2
TABLE ACCESS BY INDEX ROWID     NETVIEWPLUS.DIM_OUC     1      10      2
INDEX UNIQUE SCAN     NETVIEWPLUS.DIM_OUC_PK     1           1
INDEX UNIQUE SCAN     NETVIEWPLUS.DIM_OUC_PK     298 K     1 M     0
TABLE ACCESS FULL     NETVIEWPLUS.DIM_OUC     1      220      2030
VIEW     SYS.VW_SQ_1     1      18      2030
SORT GROUP BY          3      54      2030
TABLE ACCESS FULL     NETVIEWPLUS.DIM_OUC     3      54      2030
Can any one suggest how to efficiently write the update query.
Regards,
Koushik

Hi,
Have you gathered stats as well ? Did the query use index(es) as well ?
Without any more info like explain plan, indexes, etc., further help will be unable.
Nicolas.

Similar Messages

Bad performing update query - converting from sqlserver to oracle

SQLSERVER UPDATE
=================
UPDATE
netVIEWplus.dbo.DIM_OUC_Latest
SET
OUC = LatestDIM.OUC,
OUC_Desc = LatestDIM.OUC_Desc,
OUC_Level = LatestDIM.OUC_Level,
Parent_OUC = LatestDIM.Parent_OUC,
CC_Type = LatestDIM.CC_Type,
GFR = LatestDIM.GFR,
CORP = LatestDIM.CORP,
SOB = LatestDIM.SOB,
Div_Unit = LatestDIM.Div_Unit,
Div_Desc = LatestDIM.Div_Desc,
L1_OUC = LatestDIM.L1_OUC, L1_DEPT_DESC = LatestDIM.L1_DEPT_DESC,
L2_OUC = LatestDIM.L2_OUC, L2_DEPT_DESC = LatestDIM.L2_DEPT_DESC,
L3_OUC = LatestDIM.L3_OUC, L3_DEPT_DESC = LatestDIM.L3_DEPT_DESC,
L4_OUC = LatestDIM.L4_OUC, L4_DEPT_DESC = LatestDIM.L4_DEPT_DESC,
L5_OUC = LatestDIM.L5_OUC, L5_DEPT_DESC = LatestDIM.L5_DEPT_DESC,
L6_OUC = LatestDIM.L6_OUC, L6_DEPT_DESC = LatestDIM.L6_DEPT_DESC,
L7_OUC = LatestDIM.L7_OUC, L7_DEPT_DESC = LatestDIM.L7_DEPT_DESC,
L8_OUC = LatestDIM.L8_OUC, L8_DEPT_DESC = LatestDIM.L8_DEPT_DESC,
Current_Flag = LatestDIM.Current_Flag,
INF_Div_Unit_Only = LatestDIM.INF_Div_Unit_Only,
INF_DIM_OUC_Id_Used = LatestDIM.DIM_OUC_Id
FROM
netVIEWplus.dbo.DIM_OUC_Latest
INNER JOIN
netVIEWplus.dbo.DIM_OUC HistoryDIM
ON
HistoryDIM.DIM_OUC_Id = netVIEWplus.dbo.DIM_OUC_Latest.DIM_OUC_Id
INNER JOIN
netVIEWplus.dbo.DIM_OUC LatestDIM
ON
LatestDIM.DIM_OUC_ID = HistoryDIM.Latest_Id
Oracle Version
===========
UPDATE
netVIEWplus.DIM_OUC_Latest T1
SET (OUC,OUC_Desc,OUC_Level,Parent_OUC,CC_Type,GFR,CORP,SOB,Div_Unit,Div_Desc,L1_OUC,L1_DEPT_DESC,L2_OUC,
L2_DEPT_DESC,L3_OUC,L3_DEPT_DESC,L4_OUC,L4_DEPT_DESC,L5_OUC,L5_DEPT_DESC,L6_OUC,L6_DEPT_DESC,L7_OUC,L7_DEPT_DESC,
L8_OUC,L8_DEPT_DESC,Current_Flag,INF_Div_Unit_Only,INF_DIM_OUC_Id_Used) =
( SELECT LatestDIM.OUC OUC,LatestDIM.OUC_Desc OUC_Desc,
LatestDIM.OUC_Level OUC_Level,LatestDIM.Parent_OUC Parent_OUC,LatestDIM.CC_Type CC_Type,LatestDIM.GFR GFR,
LatestDIM.CORP CORP,LatestDIM.SOB SOB,LatestDIM.Div_Unit Div_Unit,LatestDIM.Div_Desc Div_Desc,
LatestDIM.L1_OUC L1_OUC,LatestDIM.L1_DEPT_DESC L1_DEPT_DESC,LatestDIM.L2_OUC L2_OUC,
LatestDIM.L2_DEPT_DESC L2_DEPT_DESC,LatestDIM.L3_OUC L3_OUC,LatestDIM.L3_DEPT_DESC L3_DEPT_DESC,
LatestDIM.L4_OUC L4_OUC,LatestDIM.L4_DEPT_DESC L4_DEPT_DESC,LatestDIM.L5_OUC L5_OUC,
LatestDIM.L5_DEPT_DESC L5_DEPT_DESC,LatestDIM.L6_OUC L6_OUC,LatestDIM.L6_DEPT_DESC L6_DEPT_DESC,
LatestDIM.L7_OUC L7_OUC,LatestDIM.L7_DEPT_DESC L7_DEPT_DESC,LatestDIM.L8_OUC L8_OUC,
LatestDIM.L8_DEPT_DESC L8_DEPT_DESC,LatestDIM.Current_Flag Current_Flag,
LatestDIM.INF_Div_Unit_Only INF_Div_Unit_Only,LatestDIM.DIM_OUC_Id INF_DIM_OUC_Id_Used
FROM
netVIEWplus.DIM_OUC HistoryDIM,netVIEWplus.DIM_OUC LatestDIM
where
HistoryDIM.DIM_OUC_Id = T1.DIM_OUC_Id
and
LatestDIM.DIM_OUC_ID = HistoryDIM.Latest_Id and rownum=1)
where exists ( SELECT 1
FROM
netVIEWplus.DIM_OUC HistoryDIM,netVIEWplus.DIM_OUC LatestDIM
where
HistoryDIM.DIM_OUC_Id = T1.DIM_OUC_Id
and
LatestDIM.DIM_OUC_ID = HistoryDIM.Latest_Id )
Problem is oracle update is taking long time than sqlserver update. Can it be written in some orhet way.
Regards,
Koushik

Hi,
Have you gathered stats as well ? Did the query use index(es) as well ?
Without any more info like explain plan, indexes, etc., further help will be unable.
Nicolas.

Cannot convert msaccess update query to view

Hello,
I am trying to migrate an msaccess database to oracle using oracle sql developer. The problem is that I get error messages when I convert the captured access model to an oracle model.
I only get error messages on the converted views. These are originally update queries in access like the following example:
UPDATE [Tbl Zuguebersicht CMA] INNER JOIN 1_PrioTab ON [Tbl Zuguebersicht CMA].Zugnummer = [1_PrioTab].ZugNr SET [Tbl Zuguebersicht CMA].Prioritaet = [1_PrioTab]![InternePrio];
In the captured model this query is already listed under the node for views. When I convert the model, I get the error message that it cannot be converted.
If I got it right, an update query cannot be converted to a view, is that correct? So it should rather be a function. I couldn't find a possibility to change this!
Or am I on the wrong track and there is just a special problem with exactly this update query? But then again, all the update queries could not be converted!
Help would greatly be appreciated! Thanks in advance...
Edited by: user8772417 on Sep 17, 2009 8:54 AM

Thanks for your answers!
Well I guess then I I have to create the stored procedures myself after the conversion and delete the useless views. That shouldn't be a big deal! I only wanted to avoid searching for the code lines where the stored procedure has to be called - therefore, the automatic way would have been much more comfortable :-)
I will request this feature on the sql developer page. I can't imagine I am the only one facing this particular MS Access conversion problem.
Thanks again,
Max

If then else in update query

Hello,
I was hoping anyone could provide ideas on the best way to do an update query based on an if then else statement I am using Oracle 11 on a linux server. I am writing within a perl script. I've researched online and saw some examples using case. Below is the basic query logic I am trying to implement. I would really appreciate any suggestions.
Thanks,
JC
If the MAINT_CENTER IN ('ENOC1CENTER','PMCTGAAHSDC','ATTCSPCRT01','ATTCSPCWS01','NTNLWHS4NSA') AND CAC1=’S’ and substring(CKT_ID,4,2) IN ('KQ','KR','KS','KP','L1','L2','L3','VL') and askme_temp.CKT_ID = heci.CKT_ID then SUBPRODUCT =’IPAG’
ELSE If the MAINT_CENTER IN ('ENOC1CENTER','PMCTGAAHSDC','ATTCSPCRT01','ATTCSPCWS01','NTNLWHS4NSA') AND CAC1=’S’ and substring(CKT_ID,4,2) IN ('KQ','KR','KS','KP','L1','L2','L3','VL') AND REGION=’SE’ then SUBPRODUCT =’METRO_E’
ELSE If the MAINT_CENTER IN ('ENOC1CENTER','PMCTGAAHSDC','ATTCSPCRT01','ATTCSPCWS01','NTNLWHS4NSA') AND CAC1=’S’ and substring(CKT_ID,4,2) IN ('KQ','KR','KS','KP','L1','L2','L3','VL') then SUBPRODUCT =’OPT_E_MAN’

Hi,
Welcome to the forum!
CASE sounds like a good idea to me.
For example:
UPDATE     table_x
SET     subproduct = CASE
               WHEN askme_temp.CKT_ID = heci.CKT_ID
                     THEN 'IPAG'
               WHEN region          = 'SE'
                     THEN 'METRO_E'
                     ELSE 'OPT_E_MAN'
               END
WHERE     maint_center     IN ( 'ENOC1CENTER'
                  , 'PMCTGAAHSDC'
                  , 'ATTCSPCRT01'
                  , 'ATTCSPCWS01'
                  , 'NTNLWHS4NSA'
AND   cac1                  = 'S'
AND   SUBST (ckt_id, 4, 2) IN ('KQ', 'KR', 'KS', 'KP', 'L1', 'L2', 'L3', 'VL')
AND   ...
;CASE expressions are evaluated in the order in which you write them, so if askme_temp.ckt_id = heci.ckt_id (whatever those things are), subproduct will be set to 'IPAG'. It won't matter whether region is 'METRO_E' or not; if the 1st condition is TRUE, the first THEN value is returned, and the other WHEN expressions aren't even evaluated.
What do you want to do if none of those conditions are met?
Any conditions that are common to all the rows being UPDATEd can be put in the WHERE clause; they don't have to be repeated in the CASE expression.
Remember, MERGE is often more convenient to use than UPDATE.
Edited by: Frank Kulash on Jul 27, 2011 3:23 PM

About update query

Hello :),
I am a MS SQL Server expert [;)]. trying to learn ORACLE.
I tried to assign some value to a variable in an update query. I got error message that virtual columns are not allowed. This is very important to get rolling effect.
Can some one please guide me about how to get rolling effect if we can not assign a value to a variable in an update query.
Thanx in advance.
Nishu

hello sgalaxy and gintsp, thanx for ur reply.
My reply is so late because for some reason I was not able to log on to this site.
There is some good reason why I need this. I am giving code and error messages below, please guide me.
==============================
I am trying this thing in procedure. I am using ORACLE DATABASE EXPRESS EDITION
Here is the code.
create or replace procedure "PROC1"
is
TYPE Bal_Collect IS TABLE OF NUMBER;
Collt Bal_Collect := Bal_Collect(100);
begin
Update empAccount Set Bal = Collt(Collt.Last) Returning Bal BULK COLLECT INTO Collt;
end;
Error message
Compilation failed,line 6 (02:20:45)
PLS-00425: in SQL, function argument and return types must be SQL type
Compilation failed,line 6 (02:20:45)
PL/SQL: ORA-00904: : invalid identifier
Compilation failed,line 6 (02:20:45)
PL/SQL: SQL Statement ignored
BUT FOLLOWING UPDATE STATEMENT WORKS
Update empAccount Set Bal = Collt(1) Returning Bal BULK COLLECT INTO Collt;

How to use xs:date() in an update query?

I cannot test xs:date attributes in an "update" query. In a "select" query, all work fine.
This is the sample schema:
<?xml version="1.0" encoding="utf-8"?>

<xs:schema xmlns:tns="http://OracleTest" xmlns:xdb="http://xmlns.oracle.com/xdb" elementFormDefault="qualified" targetNamespace="http://OracleTest" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="MyComplexType">
<xs:sequence>
<xs:element minOccurs="0" name="FirstChild">
<xs:complexType>
<xs:attribute name="A" type="xs:string" />
<xs:attribute name="B" type="xs:string" />
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="ID" type="xs:string" />
<xs:attribute name="DateAttr" type="xs:date" />
</xs:complexType>
<xs:element xdb:defaultTable="MyElement" name="MyElement" type="tns:MyComplexType" />
</xs:schema>
This is a sample XML document:
<?xml version="1.0" encoding="utf-8"?>

<tns:MyElement ID="ID1" xmlns:tns="http://OracleTest" DateAttr="2008-03-14" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://OracleTest http://OracleTest.xsd">
<tns:FirstChild A="a" B="b" />
</tns:MyElement>
If I check the DateAttr attribute in a xquery, it works fine:
select xmlquery('declare default element namespace "http://OracleTest"; collection("/Testing")/MyElement[@DateAttr=xs:date(''2008-03-14'')]' returning content).getclobval() from dual
If I execute an update, like this:
UPDATE RESOURCE_VIEW SET RES = deleteXML(RES, '/oraxdbr:Resource/oraxdbr:Contents/Testing/MyElement[@DateAttr=xs:date(''2008-03-14'')]','xmlns:oraxdbr="http://xmlns.oracle.com/xdb/XDBResource.xsd" xmlns="http://OracleTest"')
WHERE equals_path(RES, '/Testing/test1.xml') = 1
I get the error:
SQL Error: ORA-31011: XML parsing failed
ORA-19202: Error occurred in XML processing
LPX-00607: Invalid reference: 'date'.
31011. 00000 - "XML parsing failed"
Where is the problem?
Thank you!
Mirko

Hi,
Correct me if I'm wrong, but didn't xs:date() came with xpath 2.0?
deleteXML supports xpath 1.0 .
XMLQuery supports xpath 2.0.
That's why the error "Invalid reference: 'date'".
what function supports which version read Re: Which version of XPathAnts

Oracle 11G - Update is very slow on View

I have big trouble with some Update query on Oracle 11G.
I have a set of tables (5) of identical structures and a view that consists in an UNION ALL of the 5 tables.
None of this table contains more than 20 000 rows.
Let's call the view V_INTE_NE. Each of the basic table has a PRIMARY KEY defined on 3 NUMBERS(10,0) -> INTE_REF / NE_REF / INSTANCE.
Now, I get 6 rows in another table and I want to update my view from the data of this small table (let's call it SMALL). This table has the 3 columns INTE_REF / NE_REF / INSTANCE.
When I try to join the two tables :
SELECT * FROM T_INTE_NE T2
WHERE EXISTS ( SELECT 1 FROM SMALL T1 WHERE T2.INTE_REF = T1.INTEREF AND T2.NE_REF = T1.NEREF AND T2.INTE_INST = T1.INSTANCE )
I get the 6 lines in 0.037 seconds
When I try to update the view (I have an INSTEAD OF trigger that does nothing (just return for testing even without modifying anything), I execute the following query :
UPDATE T_INTE_NE T2
SET INTE_STATE = -11 WHERE
EXISTS ( SELECT 1 FROM SMALL T1 WHERE T2.INTE_REF = T1.INTEREF AND T2.NE_REF = T1.NEREF AND T2.INTE_INST = T1.INSTANCE )
The 6 rows are updated (at least TRIGGER is called) in 20 seconds.
However, in the execution plan, I can't see where Oracle takes time to achieve the query :
Plan hash value: 907176690
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | UPDATE STATEMENT | | 6 | 36870 | 153 (1)| 00:00:02 |
| 1 | UPDATE | T_INTE_NE | | | | |
|* 2 | HASH JOIN RIGHT SEMI | | 6 | 36870 | 153 (1)| 00:00:02 |
| 3 | TABLE ACCESS FULL | SMALL | 6 | 234 | 9 (0)| 00:00:01 |
| 4 | VIEW | T_INTE_NE | 6 | 36636 | 143 (0)| 00:00:02 |
| 5 | VIEW | X_V_T_INTE_NE | 6 | 18636 | 143 (0)| 00:00:02 |
| 6 | UNION-ALL | | | | | |
| 7 | TABLE ACCESS FULL| SECNODE1_T_INTE_NE | 1 | 3106 | 60 (0)| 00:00:01 |
| 8 | TABLE ACCESS FULL| SECNODE2_T_INTE_NE | 1 | 3106 | 60 (0)| 00:00:01 |
| 9 | TABLE ACCESS FULL| SECNODE3_T_INTE_NE | 1 | 3106 | 2 (0)| 00:00:01 |
| 10 | TABLE ACCESS FULL| SECNODE4_T_INTE_NE | 1 | 3106 | 2 (0)| 00:00:01 |
| 11 | TABLE ACCESS FULL| SECNODE5_T_INTE_NE | 1 | 3106 | 2 (0)| 00:00:01 |
| 12 | TABLE ACCESS FULL| SYS_T_INTE_NE | 1 | 3106 | 17 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - access("T2"."INTE_REF"="T1"."INTEREF" AND "T2"."NE_REF"="T1"."NEREF" AND
"T2"."INTE_INST"="T1"."INSTANCE")
Note
- dynamic sampling used for this statement (level=2)
Statistics
3 user calls
0 physical read total bytes
0 physical write total bytes
0 spare statistic 3
0 commit cleanout failures: cannot pin
0 TBS Extension: bytes extended
0 total number of times SMON posted
0 SMON posted for undo segment recovery
0 SMON posted for dropping temp segment
0 segment prealloc tasks
What could explain the difference ?
I get exactly the same execution plan (when autotrace is ON).
Furthermore, if I try to do the same update on each of the basic tables, I get the rows updated instantaneously.
Is there any reason for avoiding this kind of query ?
Any help would be greatly appreciated :-)
Regards,
Patrick

Sorry for this, I lost myself in conjonctures and I didn't think I would have to explain the whole case.
So, I wrote a small piece of PL/SQL that reproduces the same issue.
It seems that my issue is not due to the UPDATE but to the use of the IN predicate.
As you can see at the end of the script, I try to join the 2 tables using different technics.
The first query is very fast, the second is very slow.
I need the second one if I want to do any update.
DROP TABLE Part1;
DROP TABLE Part2;
DROP TABLE Part3;
DROP TABLE Part4;
CREATE TABLE Part1 ( Key1 NUMBER(10, 0), Key2 NUMBER(10, 0), Key3 NUMBER(10, 0), PartId NUMBER(10, 0) DEFAULT( 1 ) NOT NULL, Data1 VARCHAR2(1000), X_Data2 VARCHAR2(2000) NULL, X_Data3 VARCHAR2(2000) NULL, CONSTRAINT PK_Part1 PRIMARY KEY( Key1, Key2, Key3 ) );
CREATE TABLE Part2 ( Key1 NUMBER(10, 0), Key2 NUMBER(10, 0), Key3 NUMBER(10, 0), PartId NUMBER(10, 0) DEFAULT( 2 ) NOT NULL, Data1 VARCHAR2(1000), X_Data2 VARCHAR2(2000) NULL, X_Data3 VARCHAR2(2000) NULL, CONSTRAINT PK_Part2 PRIMARY KEY( Key1, Key2, Key3 ) );
CREATE TABLE Part3 ( Key1 NUMBER(10, 0), Key2 NUMBER(10, 0), Key3 NUMBER(10, 0), PartId NUMBER(10, 0) DEFAULT( 3 ) NOT NULL, Data1 VARCHAR2(1000), X_Data2 VARCHAR2(2000) NULL, X_Data3 VARCHAR2(2000) NULL, CONSTRAINT PK_Part3 PRIMARY KEY( Key1, Key2, Key3 ) );
CREATE TABLE Part4 ( Key1 NUMBER(10, 0), Key2 NUMBER(10, 0), Key3 NUMBER(10, 0), PartId NUMBER(10, 0) DEFAULT( 4 ) NOT NULL, Data1 VARCHAR2(1000), X_Data2 VARCHAR2(2000) NULL, X_Data3 VARCHAR2(2000) NULL, CONSTRAINT PK_Part4 PRIMARY KEY( Key1, Key2, Key3 ) );
CREATE OR REPLACE FUNCTION Decrypt
x_in IN VARCHAR2
) RETURN VARCHAR2
AS
x_out VARCHAR2(2000);
BEGIN
SELECT REVERSE( x_in ) INTO x_out FROM DUAL;
RETURN ( x_out );
END;
CREATE OR REPLACE VIEW AllParts AS
SELECT Key1, Key2, Key3, PartId, Data1, Decrypt( X_Data2 ) AS Data2, Decrypt( X_Data3 ) AS Data3 FROM Part1
UNION ALL
SELECT Key1, Key2, Key3, PartId, Data1, Decrypt( X_Data2 ) AS Data2, Decrypt( X_Data3 ) AS Data3 FROM Part2
UNION ALL
SELECT Key1, Key2, Key3, PartId, Data1, Decrypt( X_Data2 ) AS Data2, Decrypt( X_Data3 ) AS Data3 FROM Part3
UNION ALL
SELECT Key1, Key2, Key3, PartId, Data1, Decrypt( X_Data2 ) AS Data2, Decrypt( X_Data3 ) AS Data3 FROM Part4;
DROP TABLE Small;
CREATE TABLE Small ( Key1 NUMBER(10, 0), Key2 NUMBER(10, 0), Key3 NUMBER(10, 0), Data1 VARCHAR2(1000) );
BEGIN
DECLARE
n_Key NUMBER(10, 0 ) := 0;
BEGIN
WHILE ( n_Key < 50000 )
LOOP
INSERT INTO Part1( Key1, Key2, Key3 )
VALUES( n_Key, FLOOR( n_Key / 10 ), FLOOR( n_Key / 100 ) );
INSERT INTO Part2( Key1, Key2, Key3 )
VALUES( n_Key, FLOOR( n_Key / 10 ), FLOOR( n_Key / 100 ) );
INSERT INTO Part3( Key1, Key2, Key3 )
VALUES( n_Key, FLOOR( n_Key / 10 ), FLOOR( n_Key / 100 ) );
INSERT INTO Part4( Key1, Key2, Key3 )
VALUES( n_Key, FLOOR( n_Key / 10 ), FLOOR( n_Key / 100 ) );
n_Key := n_Key + 1;
END LOOP;
INSERT INTO Small( Key1, Key2, Key3, Data1 ) VALUES ( 1000, 100, 10, 'Test 1000' );
INSERT INTO Small( Key1, Key2, Key3, Data1 ) VALUES ( 3000, 300, 30, 'Test 3000' );
INSERT INTO Small( Key1, Key2, Key3, Data1 ) VALUES ( 5000, 500, 50, 'Test 5000' );
COMMIT;
END;
END;
SELECT T2.*
FROM Small T1, AllParts T2
WHERE T2.Key1 = T1.Key1 AND T2.Key2 = T1.Key2 AND T2.Key3 = T1.Key3;
SELECT T1.*
FROM AllParts T1
WHERE ( T1.Key1, T1.Key2, T1.Key3 ) IN ( SELECT T2.Key1, T2.Key2, T2.Key3 FROM Small T2 );

How Can Improve On Slow Update Query Using /*+ NO_XML_DML_REWRITE */?

We have an update query recently brought to my attention that is running extremely slow on Oracle 11.2.0.1 against a secure file binary XML table using
update /*+ NO_XML_DML_REWRITE */croutreach.action set object_value = :1 where actn_id = :2 .
I am told the majority/near majority of the ~ 16 fields are updated. Also this table has numerous predefined virtual columns with fn based indexes on them.
My first inclination was to recast this using the Oracle updatexml function. I was told, the /*+ NO_XML_DML_REWRITE */ hint would also be necessary here.
update /*+ NO_XML_DML_REWRITE */
<tble_name> a
set a.object_value = updatexml(a.object_value ...).
Last year our dba's were instructed by Oracle Support to use this hint, as the update wasn't updating any records w.o any error msgs.
+1. Hoping to find out if anyone has run across using this hint in some capacity and what was their experience?+
In trying to optimizie this update statement, I'll start from scratch not using the /*+ NO_XML_DML_REWRITE */ hint and will commence with using the updatexml function with setting up an xmlindex.
+2. Hoping to receive some suggestions on creating the proper xmlindex - figuring an unstructured index. If get some good performance with the xmlindex; hoping to retire some of the virtual column usage.+
+3. Any suggestions on living with virtual columns in conjunction with xmlindexes? See the action table definition and associated ivirtual columns and indexes. This table seems over indexed...+
REATE
TABLE "CROUTREACH"."ACTION" OF XMLTYPE
    CONSTRAINT "ACTN_ID_PK" PRIMARY KEY ("ACTN_ID") USING INDEX PCTFREE 10
    INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE(INITIAL 65536 NEXT
    1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1
    FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE
    DEFAULT) TABLESPACE "ACME_DATA" ENABLE
XMLTYPE STORE AS SECUREFILE BINARY XML
    TABLESPACE "ACME_DATA" ENABLE STORAGE IN ROW CHUNK 8192 CACHE READS LOGGING
    NOCOMPRESS KEEP_DUPLICATES STORAGE(INITIAL 106496 NEXT 1048576 MINEXTENTS 1
    MAXEXTENTS 2147483645 PCTINCREASE 0 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
    CELL_FLASH_CACHE DEFAULT)
ALLOW NONSCHEMA ALLOW ANYSCHEMA VIRTUAL COLUMNS
    *"ACTION_DEF_URN"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/srvContextPointer/outreachActionDefInfo/@actionDefUrn
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50))),
    *"STAT_DT"* AS (SYS_EXTRACT_UTC(CAST(TO_TIMESTAMP_TZ(SYS_XQ_UPKXML2SQL(
    SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/@status_dt'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2),'SYYYY-MM-DD"T"HH24:MI:SS.FFTZH:TZM') AS TIMESTAMP
WITH
TIME ZONE))),
    *"ACT_DEF_ID"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/srvContextPointer/outreachActionDefInfo/@actionDefId'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(20))),
    *"CORRL_ID"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/correlationId'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50))),
    *"STAT_RSN"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/statusReason'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(30))),
    *"ACT_APPNT_DT"* AS (SYS_EXTRACT_UTC(CAST(TO_TIMESTAMP_TZ(SYS_XQ_UPKXML2SQL(
    SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/actionAppointment/appointment_dt'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2),'SYYYY-MM-DD"T"HH24:MI:SS.FFTZH:TZM') AS TIMESTAMP
WITH
TIME ZONE))),
    *"UPDT_DT"* AS (SYS_EXTRACT_UTC(CAST(TO_TIMESTAMP_TZ(SYS_XQ_UPKXML2SQL(
    SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/@update_dt'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2),'SYYYY-MM-DD"T"HH24:MI:SS.FFTZH:TZM') AS TIMESTAMP
WITH
TIME ZONE))),
    *"CRET_DT"* AS (SYS_EXTRACT_UTC(CAST(TO_TIMESTAMP_TZ(SYS_XQ_UPKXML2SQL(
    SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/@create_dt'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2),'SYYYY-MM-DD"T"HH24:MI:SS.FFTZH:TZM') AS TIMESTAMP
WITH
TIME ZONE))),
    *"ACT_SEQ"* AS (CAST(TO_NUMBER(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/srvContextPointer/outreachActionDefInfo/@sequence'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2)) AS NUMBER(10))),
    *"SERVICE_DEF_URN"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03";
/action/srvContextPointer/serviceDefUrn'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(100))),
    *"ASSIGN_TEAM_CD"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/assignment/@teamCategoryCode'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50))),
    *"ASSIGN_STAFF_ID"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
/action/assignment/staffProfileId'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50))),
    *"ACTION_TYPE"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)
declare namespace xsi="http://www.w3.org/2001/XMLSchema-instance"; (::)
local-name-from-QName(QName("http://www.cigna.com/acme/domains/actions/2010/03",/action/@xsi:type))
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50))),
    *"ACTN_ID"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03";/action/@id'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50))),
    *"STATUS"*AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03";/action/@status'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(20))),
    *"ACME_MBR_ID"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
    'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03";/action/acmeMemberId'
    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
    16777216,0),50,1,2) AS VARCHAR2(50)))
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE
    INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0
    FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
    CELL_FLASH_CACHE DEFAULT
TABLESPACE "ACME_DATA" ;
CREATE UNIQUE INDEX *"CROUTREACH"."SYS_C0014547"* ON "CROUTREACH"."ACTION"
    "SYS_NC_OID$"
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
    INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0
    FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
    CELL_FLASH_CACHE DEFAULT
TABLESPACE "ACME_DATA" ;
CREATE UNIQUE INDEX *"CROUTREACH"."SYS_IL0000082156C00003$$"* ON "CROUTREACH".
"ACTION"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE(INITIAL 65536 NEXT 1048576
    MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST
    GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
    TABLESPACE "ACME_DATA" PARALLEL (DEGREE 0 INSTANCES 0) ;
CREATE UNIQUE INDEX *"CROUTREACH"."ACTN_ID_PK"* ON "CROUTREACH"."ACTION" (
"ACTN_ID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE(
INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0
FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
CELL_FLASH_CACHE DEFAULT) TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACTION_STAT_RSN_IDX"* ON "CROUTREACH"."ACTION"
      "STAT_RSN"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACTION_UPDT_DT_IDX"* ON "CROUTREACH"."ACTION"
      "UPDT_DT"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACTION_CRET_DT_IDX"* ON "CROUTREACH"."ACTION"
      "CRET_DT"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACTION_STAT_DT_IDX"* ON "CROUTREACH"."ACTION"
      "STAT_DT"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACTION_MBRID_TYP_STAT_IDX"* ON "CROUTREACH"."ACTION"
      "ACME_MBR_ID",
      "ACTION_TYPE",
      "STATUS"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACT_ACTDEF_URN_IDX"* ON "CROUTREACH"."ACTION"
      "ACTION_DEF_URN"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;
CREATE
    INDEX *"CROUTREACH"."ACTION_ACT_DEF_ID_STATUS_IDX"* ON "CROUTREACH"."ACTION"
      "ACT_DEF_ID",
      "STATUS"
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
      INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
      0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
      CELL_FLASH_CACHE DEFAULT
    TABLESPACE "ACME_DATA" ;Any suggestions much appreciated.
Regards,
Richard Blanchard

odie 63
update /*+ NO_XML_DML_REWRITE */croutreach.action set object_value = :1 where actn_id = :2 .
This update pattern is used in the production environment and is slowing the environment down as more xml content is increased. In a new release build, this update pattern against the action table described earlier, is particularly problematic.
Have some more information on the /*+ NO_XML_DML_REWRITE */ hint. It turns out, last year, updates statements would intermittently fail to correctly update silently failing. An Oracle Service Request was created. Over the span of about 5 mnths, Oracle determined a very low level Oracle kernel bug was the culprit. Oracle As a result of this SR, Oracle SUpport created BUG 11939507 <ORA-08102: index key not found during update on xmltable with a virtual column>. This bug is viewable on metalink. Oracle claims this bug has only been oberved on In the interim to 11.2.0.3, Oracle Support mentioned to use /*+ NO_XML_DML_REWRITE */; thus disabling piecewise update.
Here's preface information on this bug:
Bug 11939507: ORA-08102: INDEX KEY NOT FOUND DURING UPDATE ON XMLTABLE WITH VIRTUAL COLUMN
Bug Attributes
Type B - Defect Fixed in Product Version 12.1
Severity 2 - Severe Loss of Service Product Version 11.2.0.1
Status 80 - Development to Q/A Platform 23 - Oracle Solaris on SPARC (64-bit)
Created 30-Mar-2011 Platform Version 10
Updated 13-Feb-2012 Base Bug -
Database Version 11.2.0.1
Affects Platforms Generic
Product Source Oracle
Hdr: 11939507 11.2.0.1 XDB 11.2.0.1 BINARY PRODID-5 PORTID-23
Abstract: ORA-8102: INDEX KEY NOT FOUND DURING UPDATE ON XMLTABLE WITH VIRTUAL COLUMN*** 03/30/11 12:22 pm ***
BUG TYPE CHOSEN =============== code
Component: XML Database =======================
DETAILED PROBLEM DESCRIPTION ============================
The issue happens intermittently when running a batch program with 50 concurrent sessions that involves high concurrent updates.
DIAGNOSTIC ANALYSIS =================== reproducible testcase on customer dummy data reproduced by Thomas.
WORKAROUND? =========== No
TECHNICAL IMPACT ================ Customer is experiencing this error which is critical to the application because it causes a home health care provider to possibly lose a couple hours worth of work and have to start from scratch. The condition has only accessed concurrently from about 40 threads
RELATED ISSUES (bugs, forums, RFAs) =================================== Bug 8514561 - ORA-8102 WHEN UPDATING TABLE
HOW OFTEN DOES THE ISSUE REPRODUCE AT CUSTOMER SITE? ==================================================== Intermittent
DOES THE ISSUE REPRODUCE INTERNALLY? ==================================== Intermittent
IS A TESTCASE AVAILABLE? ======================== Yes The good news is, this bug is corrupting a virtual index column.
I'll try test cases using the update pattern; 'update /*+ NO_XML_DML_REWRITE */croutreach.action set object_value = :1 where actn_id = :2 ' - substituting actual values for the bind variables and removing interfering virtual columns. Wil lcompare with and w/o the hint.
This wil address your; "Where does the new values come from? Individual variables?" - and provide sample data.
Presently, this update pattern is used 'blindly' in that when no xml relevent changes are identified, only a couple of the roughly 16 fields are updated - yet the whole document gets updated with this update pattern. When changes occur, the whole document is updated. Will work with updating 1 or 2 fields using updatexml and try the xmlexists function for the predicate.
04/25/12 Update:
odie 63,
Here's a sample xml record from the action securefile binary xml table:
<?xml version = '1.0' encoding = 'UTF-8' standalone = 'yes'?><action xsi:type="AssessmentActionType" status_dt="2012-01-18T19:38:21.077Z" status="not applicable" create_dt="2012-01-17T23:10:16.173Z" id="dfdfdfdfdfddfdfdfdfdfdf" xmlns:ns5="http://www.xxxxx.ddd/exception/definition/schema/2010/01" xmlns="http://www.xxxxxx.ddd/mmm/domains/actions/2010/03" xmlns:ns6="http://www.xxxxx.ddd/mmm/domains/utility/outcome/2010/03" xmlns:ns7="http://www.xxxxxx.ddd/mmm/domains/common/2010/03" xmlns:ns2="http://www.xxxxx.ddd/mmm/messages/actions/2010/03" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.xxxxx.ddd/mmm/domains/workforce/2010/03" xmlns:ns4="http://www.xxxxxx.ddd/mmm/domains/entitlement/2011/11">
   <acmeMemberId>abcdefghijklmnop</acmeMemberId>
   <advocacyPlanId>qrstuvwxyz</advocacyPlanId>
   <srvContextPointer>
      <serviceDefUrn>urn:coderunner:Medical:Definition:ServiceService:11111:7</serviceDefUrn>
      <outreachActionDefInfo sequence="1" actionDefUrn="urn:xxxxxxxxxx:Medical:Definition:Action:50813:2" actionDefId="xxxxxx">
         <srvContextPath>Access Profile~Why did you access the profile?~Reason for access?</srvContextPath>
      </outreachActionDefInfo>
   </srvContextPointer>
</action>Started out using this update statement against the virtual column a.actn_id. This column is also indexed as a fbi.
UPDATE /*+ NO_XML_DML_REWRITE */ action A
SET A.object_value = updatexml(A.object_value,'/action/@status','triggered','xmlns="http://www.xxxx.vvv/yyy/domains/actions/2010/03"')
where a.actn_id='888a80be-d69f-464d-b3f7-85b6209f918e';
This statment updates fine with and w/o the hint. This hint takes away the piecewise update of the xml document and relies upon the a.actn_id virtual column.
Then removed the reliance on the virtual column using the xmlexists fn.
First did an alter index 'actn_id_pk invisible' to take the virtual column out of consideration by the optimizer.
UPDATE /*+ NO_XML_DML_REWRITE */ action A
SET A.object_value = updatexml(A.object_value,'/action/@status','triggered','xmlns="http://www.xxxx.vvv/yyy/domains/actions/2010/03"')
where xmlexists('$p/action[@id="'888a80be-d69f-464d-b3f7-85b6209f918e'"]' PASSING object_value as "p");
This update runs but doesn't update any columns - with or without the hint.
Also created a basic unstructured xmlindex to remove the full table scan - which worked fine execution plan-wise.
create index action_xmlindex_ix on action (object_value) indextype is xdb.xmlindex;Per the SR on this, the /*+ NO_XML_DML_REWRITE */ disables piecewise update and is a workaround for the bug surrounding virtual column index usage when having many concurrent sessions and updates against a table with millions of xml documents. Getting rid of the virtual column in the predicate removes the need for the workaround hint.
My problem is This update runs but doesn't update any columns. Maybe am missing something or doing a syntax/semantic error ?
Any assistance much appreciated...
Regards,
Rick Blanchard
Edited by: RickBlanchardSRSCigna on Apr 25, 2012 12:52 PM

Oracle Text contain query limit with 9i

The Oracle Text contain query is defined as this:
CONTAINS(
[schema.]column,
text_query VARCHAR2
[,label NUMBER])
RETURN NUMBER;
Is the size limit of text_query 4000 bytes with 9i? Is it increased with 10g or is it accepting CLOB in 10g?
I always got the error: "ORA-01460: unimplemented or unreasonable conversion requested" when I do the following where p_var was dynamically passed with size of more than 4000 bytes:
p_statement varchar2(20000);
p_var varchar2(8000);
p_statement := select count(*) from dewey_table where contains(concat, :x)>0;
open m_cursor for p_statement using p_var;
Thanks very much,
Kevin

The limit is definitely 4000 characters in 9i and the 10g documentation shows no change in the calling spec for that parameter.

Update Query is Performing Full table Scan of 1 Millions Records

Hello Everyboby I have one update query ,
UPDATE tablea SET
          task_status = 12
          WHERE tablea.link_id >0
          AND tablea.task_status <> 0
          AND tablea.event_class='eventexception'
          AND Exists(SELECT 1 from tablea ltask where ltask.task_id=tablea.link_id
          AND ltask.task_status = 0)
When I do explain plan it shows following result...
Execution Plan
0 UPDATE STATEMENT Optimizer=CHOOSE
1 0 UPDATE OF 'tablea'
2 1 FILTER
3 2 TABLE ACCESS (FULL) OF 'tablea'
4 2 TABLE ACCESS (BY INDEX ROWID) OF 'tablea'
5 4 INDEX (UNIQUE SCAN) OF 'PK_tablea' (UNIQUE)
NOW tablea may have more than 10 MILLION Records....This would take hell of time even if it has to
update 2 records....please suggest me some optimal solutions.....
Regards
Mahesh

I see your point but my question or logic say i have index on all columns used in where clauses so i find no reason for oracle to do full table scan,,,,
UPDATE tablea SET
task_status = 12
WHERE tablea.link_id >0
AND tablea.task_status <> 0
AND tablea.event_class='eventexception'
AND Exists(SELECT 1 from tablea ltask where ltask.task_id=tablea.link_id
AND ltask.task_status = 0)
I am clearly statis where task_status <> 0 and event_class= something and tablea.link_id >0
so ideal case FOR optimizer should be
Step 1)Select all the rowid having this condition...
Step 2)
For each row in rowid get all the row where task_status=0
and where taskid=linkid of rowid selected above...
Step 3)While looping for each rowid if it find any condition try for rowid obtained from ltask in task 2 update that record....
I want to have this kind of plan,,,,,does anyone know how to make oracle obtained this kind of plan......
It is try FULL TABLE SCAN is harmfull alteast not better than index scan.....

Update query which taking more time

Hi
I am running an update query which takeing more time any help to run this fast.
update arm538e_tmp t
set t.qtr5 =(select (sum(nvl(m.net_sales_value,0))/1000) from mnthly_sales_actvty m
where m.vndr#=t.vndr#
and m.cust_type_cd=t.cust_type
and m.cust_type_cd<>13
and m.yymm between 201301 and 201303
group by m.vndr#,m.cust_type_cd;
help will be appreciable
thank you
Edited by: 960991 on Apr 16, 2013 7:11 AM

960991 wrote:
Hi
I am running an update query which takeing more time any help to run this fast.
update arm538e_tmp t
set t.qtr5 =(select (sum(nvl(m.net_sales_value,0))/1000) from mnthly_sales_actvty m
where m.vndr#=t.vndr#
and m.cust_type_cd=t.cust_type
and m.cust_type_cd13
and m.yymm between 201301 and 201303
group by m.vndr#,m.cust_type_cd;
help will be appreciable
thank youUpdates with subqueries can be slow. Get an execution plan for the update to see what SQL is doing.
Some things to look at ...
1. Are you sure you posted the right SQL? I could not "balance" the parenthesis - 4 "(" and 3 ")"
2. Unnecessary "(" ")" in the subquery "(sum" are confusing
3. Updates with subqueries can be slow. The tqtr5 value seems to evaluate to a constant. You might improve performance by computing the value beforehand and using a variable instead of the subquery
4. Subquery appears to be correlated - good! Make sure the subquery is properly indexed if it reads < 20% of the rows in the table (this figure depends on the version of Oracle)
5. Is tqtr5 part of an index? It is a bad idea to update indexed columns

Error in update query with join

hi all,
im using oracle 10g in windows.
im not able to use this update query having join......
UPDATE
b
SET
b.is_stud = 1
FROM
boy b
INNER JOIN
relationship r
ON
b.id = r.boy_id;
thanks a lot..................

887268 wrote:
hi, thanks,,,,,,,,,
create table emp ( id,name,date,empno);
create table emp_status(slno,ename,empno);
i need to update "emp.name" in "emp" table from "emp_status.ename"
where emp.empno=emp_status.empno;
i.e) for all matched "empno" from both table, update "emp.name" from "emp_status.ename"Whats the relationship between emp and emp_status tables? If there exists one to one mapping for empno in both tables, then try
update emp e
set    e.name = (select es.ename
                 from   emp_status es
                 where e.empno = es.empno)

Update query issue to update middle (n records) of the rows in a table

Hi
I have a below requirement for that I gone thru one below appoch to fulfill my requirement.
Requirement:
I need to pull 3 crore data thru ODI, source table does not have a primary key and it have 200 columns with 3 crores records (it has a 25 columns as composite key).
I need to populate those 3 crores records into target oracle DB but when I tried to load 3 crores at time I got an error so I approch incremental load, since for that I need to update for each 1 crore records with flg1,flg2 anf flg3 (flag values), for this update I have added one more column in source table using those flag values I can populate 1 crore records in target machine.
Approch
For aove requirement I writem below query to update flg1 for first crores records update tbl_name set rownum_id='flg1' where rownum<=10000000; and it updated successfully without any error, for second, to update flg2 for 2nd crore records I wrote below update query and it execute 20min and given *0 rows updated* Please help if below query is wrong
Query: update tbl_name set rownum_id='flg2' where rownum<=20000000 and rownum_id is NULL;
Thanks in advance
Regards,
Phanikanth

A couple of thoughts.
1. This forum is in English and accessed by people in more than 100 countries. Use metric counts not crore. Translate to million, billions, trillions, etc.
2. No database version ... makes helping you very hard.
3. 200 columns with 25 in a composite key is a nightmare by almost any definition ... fix your design before going any further.
4. What error message? Post the complete message not just your impression of it.
5. Oracle tables are heap tables .. there is no such concept as the top, the bottom, or the middle.
6. If you are trying to perform sampling ... use the SAMPLE clause (http://www.morganslibrary.org/reference/select.html#sssc).
7. What is ODI? Do not expect your international audience to know what the acronym means.

Giving error in update query

This is my update query in oracle but it is giving error:
Update (select NM.Nominal_Amount,NM.Number_of_Units,NM.Current_Spot,NM.Published_Spot,NM.Strike_Price
from note_master NM ,
(     select NORM.Note_Master_ID, NORM.Asset, NORM.Currency , 50 as Spot_Price_Calc,      NVL(TOADD.NA,0) As NA, NVL(TOADD.NS,0)
As NS, NVL(TOADD.NA_P,0) As NA_P, NVL(TOADD.NS_P,0) As NS_P, NVL(TOADD.SA,0) As SA,      (50 * (NORM.Strike_Price_Per/100)) as
rike_Price_Calc,      (Case When UPPER(NORM.Misc2) = 'Q' THEN (NORM.No_Of_Shares * 50 * (NORM.Strike_Price_Per/100)) Else
NORM.Nominal_Amount End )as Nominal_Amount_Calc,     (Case When UPPER(NORM.Misc2) ='N' THEN (NORM.Nominal_Amount /( 50 * (NORM.Strike_Price_Per/100)))
Else NORM.No_Of_Shares End )as NO_Of_Shares_Calc,     (Case When UPPER(NORM.Misc2) = 'Q' THEN (NORM.No_Of_Shares * 50 * (NORM.Strike_Price_Per/100) * NORM.Issue_Price )/100
Else (NORM.Nominal_Amount * NORM.Issue_Price )/100 End )as Settlement_Amt_Calc     from      (          select Note_Master_Id, MIN(Spot_Price) as Spot_Price, Min(Strike_Price) as
Strike_Price, SUM(Nominal_Amount) as Nominal_Amount, SUM(No_Of_Shares) as No_Of_Shares , MIN(Issue_Price) as Issue_Price, MIN(Asset) as Asset, MIN(Currency) as Currency,
MIN(Strike_Price_Per) as Strike_Price_Per, MIN(Misc2) as Misc2      from      (          Select Note_Master_Id, Spot_Price, Strike_Price, Nominal_Amount, No_Of_Shares, Issue_Price, Asset,
Currency , Strike_Price_Per,Misc2      from Sample_ADF_FinIQ_Common.Note_Order_RM      Where Order_Status_Flag = 'YYYYYYNNNNNNNNNN'      And RO_ID = 'R000000002'     ) NORM      Group by Note_Master_Id     ) NORM
Left Outer JOIN Sample_ADF_FinIQ_Common.RATESSPOTBIDASK RSBA     On RSBA.PairCode = (NORM.Asset )          Left Outer JOIN      (     select Note_Master_ID,sum(Nominal_Amount)
as NA, sum(No_Of_Shares) as NS, sum(NominalAmt_Pending) as NA_P, sum(NoOfShares_Pending) as NS_P,sum(Settlement_Amt) as SA      from Note_Order_RM
Where RO_ID <> 'R000000002'     group by Note_Master_ID ) TOADD     On TOADD.Note_Master_ID = NORM.Note_Master_ID ) RESULT1 where NM.Note_Master_ID = RESULT1.Note_Master_ID )
set      Price_Updated_YN = 'Y'           ,
Nominal_Amount = RESULT1.NA + RESULT1.Nominal_Amount_Calc          , Number_Of_Units = RESULT1.NS + RESULT1.NO_Of_Shares_Calc          ,
Current_Spot = RESULT1.Spot_Price_Calc           , Published_Spot = RESULT1.Spot_Price_Calc           , Strike_Price = RESULT1.Strike_Price_Calc
where NM.Note_Master_ID = RESULT1.Note_Master_ID;
error :
rror at Command Line:17 Column:105
Error report:
SQL Error: ORA-00904: "RESULT1"."STRIKE_PRICE_CALC": invalid identifier
00904. 00000 - "%s: invalid identifier"
can anybody help.
Thanks

Still one more typo problem exists in you sql stament , equal to(=) operator is missing in your original statement look below
original
Where RO_ID 'R000000002'     group by Note_Master_ID ) TOADD     On TOADD.Note_Master_ID = NORM.Note_Master_ID ) RESULT1 where NM.Note_Master_ID = RESULT1.Note_Master_ID )
set Price_Updated_YN = 'Y'
modified
Where RO_ID='R000000002'     group by Note_Master_ID ) TOADD     On TOADD.Note_Master_ID = NORM.Note_Master_ID ) RESULT1 where NM.Note_Master_ID = RESULT1.Note_Master_ID )
set Price_Updated_YN = 'Y' Ok, once try with this code, some syntax prob i modified it.
Update (select NM.Nominal_Amount,NM.Number_of_Units,NM.Current_Spot,NM.Published_Spot,NM.Strike_Price
from note_master NM ,
(     select NORM.Note_Master_ID, NORM.Asset, NORM.Currency , 50 as Spot_Price_Calc, NVL(TOADD.NA,0) As NA, NVL(TOADD.NS,0)
As NS, NVL(TOADD.NA_P,0) As NA_P, NVL(TOADD.NS_P,0) As NS_P, NVL(TOADD.SA,0) As SA, (50 * (NORM.Strike_Price_Per/100)) as
Strike_Price_Calc, (Case When UPPER(NORM.Misc2) = 'Q' THEN (NORM.No_Of_Shares * 50 * (NORM.Strike_Price_Per/100)) Else
NORM.Nominal_Amount End )as Nominal_Amount_Calc,     (Case When UPPER(NORM.Misc2) ='N' THEN (NORM.Nominal_Amount /( 50 * (NORM.Strike_Price_Per/100)))
Else NORM.No_Of_Shares End )as NO_Of_Shares_Calc,     (Case When UPPER(NORM.Misc2) = 'Q' THEN (NORM.No_Of_Shares * 50 * (NORM.Strike_Price_Per/100) * NORM.Issue_Price )/100
Else (NORM.Nominal_Amount * NORM.Issue_Price )/100 End )as Settlement_Amt_Calc     from (      select Note_Master_Id, MIN(Spot_Price) as Spot_Price, Min(Strike_Price) as
Strike_Price, SUM(Nominal_Amount) as Nominal_Amount, SUM(No_Of_Shares) as No_Of_Shares , MIN(Issue_Price) as Issue_Price, MIN(Asset) as Asset, MIN(Currency) as Currency,
MIN(Strike_Price_Per) as Strike_Price_Per, MIN(Misc2) as Misc2 from (      Select Note_Master_Id, Spot_Price, Strike_Price, Nominal_Amount, No_Of_Shares, Issue_Price, Asset,
Currency , Strike_Price_Per,Misc2 from Sample_ADF_FinIQ_Common.Note_Order_RM Where Order_Status_Flag = 'YYYYYYNNNNNNNNNN' And RO_ID = 'R000000002'     ) NORM Group by Note_Master_Id     ) NORM
Left Outer JOIN Sample_ADF_FinIQ_Common.RATESSPOTBIDASK RSBA     On RSBA.PairCode = (NORM.Asset )      Left Outer JOIN (     select Note_Master_ID,sum(Nominal_Amount)
as NA, sum(No_Of_Shares) as NS, sum(NominalAmt_Pending) as NA_P, sum(NoOfShares_Pending) as NS_P,sum(Settlement_Amt) as SA from Note_Order_RM
Where RO_ID 'R000000002'     group by Note_Master_ID ) TOADD     On TOADD.Note_Master_ID = NORM.Note_Master_ID ) RESULT1 where NM.Note_Master_ID = RESULT1.Note_Master_ID )
set Price_Updated_YN = 'Y' ,
Nominal_Amount = RESULT1.NA + RESULT1.Nominal_Amount_Calc      , Number_Of_Units = RESULT1.NS + RESULT1.NO_Of_Shares_Calc      ,
Current_Spot = RESULT1.Spot_Price_Calc , Published_Spot = RESULT1.Spot_Price_Calc , Strike_Price = RESULT1.Strike_Price_Calc
where NM.Note_Master_ID = RESULT1.Note_Master_ID;Edited by: darkStargate on Dec 8, 2011 7:42 PM

Simple Update query Will not work

I am new to sql and I am doing an update query in access and it will not work, here is the query.
UPDATE Change Code Master Table SET change code = '0';
Edited by: 805337 on Oct 26, 2010 8:05 AM

805337 wrote:
I am new to sql and I am doing an update query in access and it will not work, here is the query.
UPDATE Change Code Master Table SET change code = '0';
Edited by: 805337 on Oct 26, 2010 8:05 AMI'm not at all sure why you are asking an MS Access question on an Oracle forum. Last I heard, Larry had not bought Microsoft yet.
The MS Access equivalent to double quoting an identifier is square brackets like:
UPDATE [Change Code Master Table] SET [change code] = '0';John

SQLSERVER to ORACLE conversion - Update query

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