Copy table xmltype column
A collegue just asked me the following:
He wants to copy data from one database table to the same table on another database. The table has a XMLTYPE column. Is there a way other than export/import to copy the table to a file including XML-Values and Insert from the file to the target table?
Export/Import seems the correct approach to me, however he doesn't have neccessary rights to do so. Do you know any easy other way?
Why not use a DB link?
XMLTypes can be copied through DB links:
SQL> create table t as select * from t@dev1;
Table created.
SQL> select table_name, column_name, data_type from user_tab_cols where table_name = 'T';
TABLE_NAME COLUMN_NAME DATA_TYPE
T X XMLTYPE
T SYS_NC00002$ CLOB
Similar Messages
-
hi all,
i've recently implementing a project which need to stored hierarchical data. since relational db alone can only offer flatfile and implementing hierarchical data using realtional table with design structure such as
1. MPTT(Modified Preorder Tree Traversal)
2. Adjacency List
3. Recursion
has a lot of drawback ESPECIALLY on searching/traversing to find parent nodes. so i decided to try using oracle xmldb since xml is by nature hierarchical. so i came out with a design by using relational table + xmltype column. what i did is for eg. a customer table
create table customer(
id varchar2(32),
name varchar2(50),
balance number,
xmltype
the xmltype is stored as schema enabled not Clob. the schema is defined where the customer node will have unlimited nesting with each other.
where the xmltype column is to stored the position/path of this customers within xml tree.
eg. This customer id is 3 and the path is stored as below
<root>
<customer id="1">
<customer id="2">
<customer id="3"/>
</customer>
</customer>
</root>
the path will have a root node element and nested all the way until this customers. so in short i will be able to select this customer using Xpath, by traversing up by grabbing all the parents, getting all the child of this customer and getting the sibling as well.
the operation on this row record will involved with updating or querying(mostly) the xmltree inside this column.
so, my question is, based on this design:
1. is this design relevent? compared to just used MPTT(Modified Preorder Tree Traversal), Adjacency List & Recursion?
2. which isolation level should i use if there's an event that this customer's path will be updated/or the parent nodes need to be updated?
i'm not very sure about this design yet, so any recommendations or advise on this?
Thanks & Regards,
wesleyYou will need to create a custom BC4J domain object as a java type for XMLType and then implement the necessary fetch and update semantics. There is no built in support in BC4J framework for this type at this time.
-
ORA-07445 in the alert log when inserting into table with XMLType column
I'm trying to insert an xml-document into a table with a schema-based XMLType column. When I try to insert a row (using plsql-developer) - oracle is busy for a few seconds and then the connection to oracle is lost.
Below you''ll find the following to recreate the problem:
a) contents from the alert log
b) create script for the table
c) the before-insert trigger
d) the xml-schema
e) code for registering the schema
f) the test program
g) platform information
Alert Log:
Fri Aug 17 00:44:11 2007
Errors in file /oracle/app/oracle/product/10.2.0/db_1/admin/dntspilot2/udump/dntspilot2_ora_13807.trc:
ORA-07445: exception encountered: core dump [SIGSEGV] [Address not mapped to object] [475177] [] [] []
Create script for the table:
CREATE TABLE "DNTSB"."SIGNATURETABLE"
( "XML_DOCUMENT" "SYS"."XMLTYPE" ,
"TS" TIMESTAMP (6) WITH TIME ZONE NOT NULL ENABLE
) XMLTYPE COLUMN "XML_DOCUMENT" XMLSCHEMA "http://www.sporfori.fo/schemas/www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd" ELEMENT "Object"
ROWDEPENDENCIES ;
Before-insert trigger:
create or replace trigger BIS_SIGNATURETABLE
before insert on signaturetable
for each row
declare
-- local variables here
l_sigtab_rec signaturetable%rowtype;
begin
if (:new.xml_document is not null) then
:new.xml_document.schemavalidate();
end if;
l_sigtab_rec.xml_document := :new.xml_document;
end BIS_SIGNATURETABLE2;
XML-Schema (xmldsig-core-schema.xsd):
=====================================================================================
<?xml version="1.0" encoding="utf-8"?>
<!-- Schema for XML Signatures
http://www.w3.org/2000/09/xmldsig#
$Revision: 1.1 $ on $Date: 2002/02/08 20:32:26 $ by $Author: reagle $
Copyright 2001 The Internet Society and W3C (Massachusetts Institute
of Technology, Institut National de Recherche en Informatique et en
Automatique, Keio University). All Rights Reserved.
http://www.w3.org/Consortium/Legal/
This document is governed by the W3C Software License [1] as described
in the FAQ [2].
[1] http://www.w3.org/Consortium/Legal/copyright-software-19980720
[2] http://www.w3.org/Consortium/Legal/IPR-FAQ-20000620.html#DTD
-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xdb="http://xmlns.oracle.com/xdb"
targetNamespace="http://www.w3.org/2000/09/xmldsig#" version="0.1" elementFormDefault="qualified">
<!-- Basic Types Defined for Signatures -->
<xs:simpleType name="CryptoBinary">
<xs:restriction base="xs:base64Binary">
</xs:restriction>
</xs:simpleType>
<!-- Start Signature -->
<xs:element name="Signature" type="ds:SignatureType"/>
<xs:complexType name="SignatureType">
<xs:sequence>
<xs:element ref="ds:SignedInfo"/>
<xs:element ref="ds:SignatureValue"/>
<xs:element ref="ds:KeyInfo" minOccurs="0"/>
<xs:element ref="ds:Object" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:complexType>
<xs:element name="SignatureValue" type="ds:SignatureValueType"/>
<xs:complexType name="SignatureValueType">
<xs:simpleContent>
<xs:extension base="xs:base64Binary">
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<!-- Start SignedInfo -->
<xs:element name="SignedInfo" type="ds:SignedInfoType"/>
<xs:complexType name="SignedInfoType">
<xs:sequence>
<xs:element ref="ds:CanonicalizationMethod"/>
<xs:element ref="ds:SignatureMethod"/>
<xs:element ref="ds:Reference" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:complexType>
<xs:element name="CanonicalizationMethod" type="ds:CanonicalizationMethodType"/>
<xs:complexType name="CanonicalizationMethodType" mixed="true">
<xs:sequence>
<xs:any namespace="##any" minOccurs="0" maxOccurs="unbounded"/>
<!-- (0,unbounded) elements from (1,1) namespace -->
</xs:sequence>
<xs:attribute name="Algorithm" type="xs:anyURI" use="required"/>
</xs:complexType>
<xs:element name="SignatureMethod" type="ds:SignatureMethodType"/>
<xs:complexType name="SignatureMethodType" mixed="true">
<xs:sequence>
<xs:element name="HMACOutputLength" minOccurs="0" type="ds:HMACOutputLengthType"/>
<xs:any namespace="##other" minOccurs="0" maxOccurs="unbounded"/>
<!-- (0,unbounded) elements from (1,1) external namespace -->
</xs:sequence>
<xs:attribute name="Algorithm" type="xs:anyURI" use="required"/>
</xs:complexType>
<!-- Start Reference -->
<xs:element name="Reference" type="ds:ReferenceType"/>
<xs:complexType name="ReferenceType">
<xs:sequence>
<xs:element ref="ds:Transforms" minOccurs="0"/>
<xs:element ref="ds:DigestMethod"/>
<xs:element ref="ds:DigestValue"/>
</xs:sequence>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
<xs:attribute name="URI" type="xs:anyURI" use="optional"/>
<xs:attribute name="Type" type="xs:anyURI" use="optional"/>
</xs:complexType>
<xs:element name="Transforms" type="ds:TransformsType"/>
<xs:complexType name="TransformsType">
<xs:sequence>
<xs:element ref="ds:Transform" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:element name="Transform" type="ds:TransformType"/>
<xs:complexType name="TransformType" mixed="true">
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:any namespace="##other" processContents="lax"/>
<!-- (1,1) elements from (0,unbounded) namespaces -->
<xs:element name="XPath" type="xs:string"/>
</xs:choice>
<xs:attribute name="Algorithm" type="xs:anyURI" use="required"/>
</xs:complexType>
<!-- End Reference -->
<xs:element name="DigestMethod" type="ds:DigestMethodType"/>
<xs:complexType name="DigestMethodType" mixed="true">
<xs:sequence>
<xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="Algorithm" type="xs:anyURI" use="required"/>
</xs:complexType>
<xs:element name="DigestValue" type="ds:DigestValueType"/>
<xs:simpleType name="DigestValueType">
<xs:restriction base="xs:base64Binary"/>
</xs:simpleType>
<!-- End SignedInfo -->
<!-- Start KeyInfo -->
<xs:element name="KeyInfo" type="ds:KeyInfoType"/>
<xs:complexType name="KeyInfoType" mixed="true">
<xs:choice maxOccurs="unbounded">
<xs:element ref="ds:KeyName"/>
<xs:element ref="ds:KeyValue"/>
<xs:element ref="ds:RetrievalMethod"/>
<xs:element ref="ds:X509Data"/>
<xs:element ref="ds:PGPData"/>
<xs:element ref="ds:SPKIData"/>
<xs:element ref="ds:MgmtData"/>
<xs:any processContents="lax" namespace="##other"/>
<!-- (1,1) elements from (0,unbounded) namespaces -->
</xs:choice>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:complexType>
<xs:element name="KeyName" type="xs:string"/>
<xs:element name="MgmtData" type="xs:string"/>
<xs:element name="KeyValue" type="ds:KeyValueType"/>
<xs:complexType name="KeyValueType" mixed="true">
<xs:choice>
<xs:element ref="ds:DSAKeyValue"/>
<xs:element ref="ds:RSAKeyValue"/>
<xs:any namespace="##other" processContents="lax"/>
</xs:choice>
</xs:complexType>
<xs:element name="RetrievalMethod" type="ds:RetrievalMethodType"/>
<xs:complexType name="RetrievalMethodType">
<xs:sequence>
<xs:element ref="ds:Transforms" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="URI" type="xs:anyURI"/>
<xs:attribute name="Type" type="xs:anyURI" use="optional"/>
</xs:complexType>
<!-- Start X509Data -->
<xs:element name="X509Data" type="ds:X509DataType"/>
<xs:complexType name="X509DataType">
<xs:sequence maxOccurs="unbounded">
<xs:choice>
<xs:element name="X509IssuerSerial" type="ds:X509IssuerSerialType"/>
<xs:element name="X509SKI" type="xs:base64Binary"/>
<xs:element name="X509SubjectName" type="xs:string"/>
<xs:element name="X509Certificate" type="xs:base64Binary"/>
<xs:element name="X509CRL" type="xs:base64Binary"/>
<xs:any namespace="##other" processContents="lax"/>
</xs:choice>
</xs:sequence>
</xs:complexType>
<xs:complexType name="X509IssuerSerialType">
<xs:sequence>
<xs:element name="X509IssuerName" type="xs:string"/>
<xs:element name="X509SerialNumber" type="xs:integer"/>
</xs:sequence>
</xs:complexType>
<!-- End X509Data -->
<!-- Begin PGPData -->
<xs:element name="PGPData" type="ds:PGPDataType"/>
<xs:complexType name="PGPDataType">
<xs:choice>
<xs:sequence>
<xs:element name="PGPKeyID" type="xs:base64Binary"/>
<xs:element name="PGPKeyPacket" type="xs:base64Binary" minOccurs="0"/>
<xs:any namespace="##other" processContents="lax" minOccurs="0"
maxOccurs="unbounded"/>
</xs:sequence>
<xs:sequence>
<xs:element name="PGPKeyPacket" type="xs:base64Binary"/>
<xs:any namespace="##other" processContents="lax" minOccurs="0"
maxOccurs="unbounded"/>
</xs:sequence>
</xs:choice>
</xs:complexType>
<!-- End PGPData -->
<!-- Begin SPKIData -->
<xs:element name="SPKIData" type="ds:SPKIDataType"/>
<xs:complexType name="SPKIDataType">
<xs:sequence maxOccurs="unbounded">
<xs:element name="SPKISexp" type="xs:base64Binary"/>
<xs:any namespace="##other" processContents="lax" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
<!-- End SPKIData -->
<!-- End KeyInfo -->
<!-- Start Object (Manifest, SignatureProperty) -->
<xs:element name="Object" type="ds:ObjectType"/>
<xs:complexType name="ObjectType" mixed="true">
<xs:sequence minOccurs="0" maxOccurs="unbounded">
<xs:any namespace="##any" processContents="lax"/>
</xs:sequence>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
<xs:attribute name="MimeType" type="xs:string" use="optional"/> <!-- add a grep facet -->
<xs:attribute name="Encoding" type="xs:anyURI" use="optional"/>
</xs:complexType>
<xs:element name="Manifest" type="ds:ManifestType"/>
<xs:complexType name="ManifestType">
<xs:sequence>
<xs:element ref="ds:Reference" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:complexType>
<xs:element name="SignatureProperties" type="ds:SignaturePropertiesType"/>
<xs:complexType name="SignaturePropertiesType">
<xs:sequence>
<xs:element ref="ds:SignatureProperty" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:complexType>
<xs:element name="SignatureProperty" type="ds:SignaturePropertyType"/>
<xs:complexType name="SignaturePropertyType" mixed="true">
<xs:choice maxOccurs="unbounded">
<xs:any namespace="##other" processContents="lax"/>
<!-- (1,1) elements from (1,unbounded) namespaces -->
</xs:choice>
<xs:attribute name="Target" type="xs:anyURI" use="required"/>
<xs:attribute name="Id" type="xs:ID" use="optional"/>
</xs:complexType>
<!-- End Object (Manifest, SignatureProperty) -->
<!-- Start Algorithm Parameters -->
<xs:simpleType name="HMACOutputLengthType">
<xs:restriction base="xs:integer"/>
</xs:simpleType>
<!-- Start KeyValue Element-types -->
<xs:element name="DSAKeyValue" type="ds:DSAKeyValueType"/>
<xs:complexType name="DSAKeyValueType">
<xs:sequence>
<xs:sequence minOccurs="0">
<xs:element name="P" type="ds:CryptoBinary"/>
<xs:element name="Q" type="ds:CryptoBinary"/>
</xs:sequence>
<xs:element name="G" type="ds:CryptoBinary" minOccurs="0"/>
<xs:element name="Y" type="ds:CryptoBinary"/>
<xs:element name="J" type="ds:CryptoBinary" minOccurs="0"/>
<xs:sequence minOccurs="0">
<xs:element name="Seed" type="ds:CryptoBinary"/>
<xs:element name="PgenCounter" type="ds:CryptoBinary"/>
</xs:sequence>
</xs:sequence>
</xs:complexType>
<xs:element name="RSAKeyValue" type="ds:RSAKeyValueType"/>
<xs:complexType name="RSAKeyValueType">
<xs:sequence>
<xs:element name="Modulus" type="ds:CryptoBinary"/>
<xs:element name="Exponent" type="ds:CryptoBinary"/>
</xs:sequence>
</xs:complexType>
<!-- End KeyValue Element-types -->
<!-- End Signature -->
</xs:schema>
===============================================================================
Code for registering the xml-schema
begin
dbms_xmlschema.deleteSchema('http://xmlns.oracle.com/xdb/schemas/DNTSB/www.sporfori.fo/schemas/www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd',
dbms_xmlschema.DELETE_CASCADE_FORCE);
end;
begin
DBMS_XMLSCHEMA.REGISTERURI(
schemaurl => 'http://www.sporfori.fo/schemas/www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd',
schemadocuri => 'http://www.sporfori.fo/schemas/www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd',
local => TRUE,
gentypes => TRUE,
genbean => FALSE,
gentables => TRUE,
force => FALSE,
owner => 'DNTSB',
options => 0);
end;
Test program
-- Created on 17-07-2006 by EEJ
declare
XML_TEXT3 CLOB := '<Object xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignatureProperties>
<SignatureProperty Target="">
<Timestamp xmlns="http://www.sporfori.fo/schemas/dnts/general/2006/11/14">2007-05-10T12:00:00-05:00</Timestamp>
</SignatureProperty>
</SignatureProperties>
</Object>';
xmldoc xmltype;
begin
xmldoc := xmltype(xml_text3);
insert into signaturetable
(xml_document, ts)
values
(xmldoc, current_timestamp);
end;
Platform information
Operating system:
-bash-3.00$ uname -a
SunOS dntsdb 5.10 Generic_125101-09 i86pc i386 i86pc
SQLPlus:
SQL*Plus: Release 10.2.0.3.0 - Production on Fri Aug 17 00:15:13 2007
Copyright (c) 1982, 2006, Oracle. All Rights Reserved.
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning and Data Mining options
Kind Regards,
EyðunYou should report this in a service request on http://metalink.oracle.com.
It is a shame that you put all the effort here to describe your problem, but on the other hand you can now also copy & paste the question to Oracle Support.
Because you are using 10.2.0.3; I am guessing that you have a valid service contract... -
Find size of table with XMLTYPE column STORE AS BINARY XML
Hi,
I have a table with structure as:
CREATE TABLE XML_TABLE_1
ID NUMBER NOT NULL,
SOURCE VARCHAR2(255 CHAR) NOT NULL,
XML_TEXT SYS.XMLTYPE,
CREATION_DATE TIMESTAMP(6) NOT NULL
XMLTYPE XML_TEXT STORE AS BINARY XML (
TABLESPACE Tablespace1_LOB
DISABLE STORAGE IN ROW
CHUNK 16384
RETENTION
CACHE READS
NOLOGGING)
ALLOW NONSCHEMA
DISALLOW ANYSCHEMA
TABLESPACE Tablespace2_DATA
- So HOW do I find the total size occupied by this table. Does BINARY storage work as LOB storage. i.e. I need to consider USER_LOBS as well for this.
OR foll. will work
select segment_name as tablename, sum(bytes/ (1024 * 1024 * 1024 )) as tablesize_in_GB
From dba_segments
where segment_name = 'XML_TABLE_1'
and OWNER = 'SCHEMANAME'
group by segment_name ;
- Also if I am copying it to another table of same structure as:
Insert /*+ append */ into XML_TABLE_2 Select * from XML_TABLE_1.
Then how much space in ROllbackSegment do I need. Is it equal to the size of the table XML_TABLE_1?
Thanks..I think foll query calculates it right while including the LOB storage as:
SELECT SUM(bytes)/1024/1024/1024 gb
FROM dba_segments
WHERE (owner = 'SCHEMA_NAME' and
segment_name = 'TABLE_NAME')
OR (owner, segment_name) IN (
SELECT owner, segment_name
FROM dba_lobs
WHERE owner = 'SCHEMA_NAME'
AND table_name = 'TABLE_NAME')
It's 80 GB for our Table with XMLType Column.
But for the second point:
Do we need 80GB of UNDO/ROLLBACK Segment for performing:
Insert /*+ append */ into TableName1 Select * from TableName;
Thanks.. -
Help on how to query 11g table with XMLType column
To all,
We have this table:
DESC MESSAGE
Name Null Type
MESSAGE_ID NOT NULL NUMBER(38)
REQUEST_UU_ID NOT NULL VARCHAR2(50)
MESSAGE_TYPE_CD NOT NULL CHAR(3 CHAR)
EMPLOYEE_NUM NOT NULL VARCHAR2(8)
SEQUENCE_NUM VARCHAR2(20)
REVERSAL_SEQUENCE_NUM VARCHAR2(20)
TRANSACTION_TS TIMESTAMP(6)
MESSAGE_CONTENT_TXT NOT NULL XMLTYPE()
CREATE_BY_NM NOT NULL VARCHAR2(50 CHAR)
CREATE_BY_TS NOT NULL TIMESTAMP(6)
LAST_UPDATE_BY_NM NOT NULL VARCHAR2(50 CHAR)
LAST_UPDATE_BY_TS NOT NULL TIMESTAMP(6)
Given we have multiple columns and one is XMLType how do I query to find rows in the db that match this XPath
Here is a fragment of XML that is held in MESSAGE_CONTENT_TXT XMLType column:
<?xml version="1.0" encoding="UTF-8"?>
<cfg-env:Envelope xmlns="http://www.co.com/schemas/CFX/" xmlns:cfg-env="http://www.co.com/schemas/cfg-env/" xmlns:cfg-hdr="http://www.co.com/schemas/cfg-hdr/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.co.com/schemas/cfg-env/" >
<cfg-env:Header>
<cfg-hdr:MessageHeader xmlns:cfg-hdr="http://www.co.com/schemas/cfg-hdr/" xmlns:cfg-env="http://www.co.com/schemas/cfg-env/" xmlns="http://www.co.com/schemas/CFX/">
<cfg-hdr:Service>
<cfg-hdr:ServiceName>process</cfg-hdr:ServiceName>
<cfg-hdr:MessageType>Request</cfg-hdr:MessageType>
<cfg-hdr:ServiceVersion>1</cfg-hdr:ServiceVersion>
</cfg-hdr:Service>
<cfg-hdr:From>
<cfg-hdr:PartyId>13-175-8724</cfg-hdr:PartyId>
<cfg-hdr:CostCenter>2009065</cfg-hdr:CostCenter>
<cfg-hdr:System>
<cfg-hdr:Application>[email protected]</cfg-hdr:Application>
<cfg-hdr:Version>1.0</cfg-hdr:Version>
<cfg-hdr:Channel>TLR</cfg-hdr:Channel>
</cfg-hdr:System>
<cfg-hdr:OrigReplyToQMgr>QMBKRD01</cfg-hdr:OrigReplyToQMgr>
<cfg-hdr:OrigReplyToQ>Q1</cfg-hdr:OrigReplyToQ>
</cfg-hdr:From>
<cfg-hdr:UserSession>
<cfg-hdr:SignonRole>User</cfg-hdr:SignonRole>
<cfg-hdr:LogonId>R099999</cfg-hdr:LogonId>
I'm trying to find rows in the database that are /Envelope/Header/MessageHeader/UserSession/LogonId/R099999.
Thanks for the assistance. I'm new to XML DB. I appreciate the help.
EricHi Eric,
You can use XMLExists, like this :
select *
from message t
where xmlexists(
'declare namespace env = "http://www.co.com/schemas/cfg-env/"; (: :)
declare namespace hdr = "http://www.co.com/schemas/cfg-hdr/"; (: :)
/env:Envelope/env:Header/hdr:MessageHeader/hdr:UserSession[hdr:LogonId=$id]'
passing t.message_content_txt
, 'R099999' as "id"
); -
Issues with using XMLType indexes against a table with XMLType column
I am attempting to use an XMLIndex with a Structured Component and not having too much luck. Not much data in metalink nor is the documentation very helpful:
http://download.oracle.com/docs/cd/E11882_01/appdev.112/e10492/xdb_indexing.htm#BCGHGIGC
The table DDL is as follows:
CREATE TABLE ECI_SCHEMA.REV_ITEM_EARN_DTL_VIRTUAL(
REV_ITEM_EARN_DTL_ID_NBR NUMBER(16,0) NOT NULL,
UNIQ_MSG_ID_NBR VARCHAR2(50) NOT NULL,
REV_ITEM_BILL_DTL_ID_NBR NUMBER(16,0),
PLAN_RACN_NBR NUMBER(10,0) NOT NULL,
INV_DTL_IMG SYS.XMLType NOT NULL,
NON_INV_DTL_IMG BLOB NOT NULL,
PART_KEY_CD GENERATED ALWAYS AS (MOD(PLAN_RACN_NBR,5)) VIRTUAL,
LAST_UPDT_TMSTP TIMESTAMP(6) NOT NULL,
INV_ID_NBR NUMBER(16,0),
ITEM_STATUS_CD VARCHAR2(1) DEFAULT 'A' NOT NULL
LOB (NON_INV_DTL_IMG) STORE AS NON_IDI_LOB (CHUNK 8192 PCTVERSION 10 CACHE)
TABLESPACE ECI_DATA
PARTITION BY RANGE (PART_KEY_CD)
PARTITION RIED_DAY0_PART
VALUES LESS THAN (1)
TABLESPACE ECI_DATA
PARTITION RIED_DAY1_PART
VALUES LESS THAN (2)
TABLESPACE ECI_DATA
PARTITION RIED_DAY2_PART
VALUES LESS THAN (3)
TABLESPACE ECI_DATA
PARTITION RIED_DAY3_PART
VALUES LESS THAN (4)
TABLESPACE ECI_DATA
PARTITION RIED_MAXVAL_PART
VALUES LESS THAN (MAXVALUE)
TABLESPACE ECI_DATA
XMLTYPE COLUMN "INV_DTL_IMG" STORE AS OBJECT RELATIONAL
XMLSCHEMA "someXdbDocument.xsd"
ELEMENT "revenueInvoice"
According to the documentation, I should be able to create a structured XMLIndex on the XMLType column with the following syntax:
SQL> create index eci_schema.rev_item_earn_dtl_virt_xmlix on eci_schema.rev_item_earn_dtl_virtual
2 (INV_DTL_IMG)
3 INDEXTYPE IS XDB.XMLIndex
4 parameters ('PATH TABLE RIED_PATH_TABLE')
5 local;
When I do this, I get the following error:
create index eci_schema.rev_item_earn_dtl_virt_xmlix on eci_schema.rev_item_earn_dtl_virtual
ERROR at line 1:
ORA-29958: fatal error occurred in the execution of ODCIINDEXCREATE routine
ORA-30959: The indexed column is not stored in CLOB.
What am I doing wrong? Based on the Oracle documentation, I was under the impression that 11.2 XMLIndex would work with Object Relational storage. Is this not the case?CREATE INDEX ECI_SCHEMA.REV_ITEM_EARN_DTL_IX7
ON ECI_SCHEMA.REV_ITEM_EARN_DTL
extractValue(inv_dtl_img, '/revenueInvoice/service/transportation/mstrTrkngNbr')
TABLESPACE ECI_REV_ITEM_EARN_DTL_IX7_ITS
LOGGING
PARALLEL(DEGREE 8 INSTANCES 1)
LOCAL
/Elements that occur at most once in each document can be indexed using extractValue(). Despite the fact that the index appears to be a functional index, when we create the index we automatically re-write the create index into a normal btree index on the column that contains the value for the element identified by the xpath.
Eg in the case of a functional index based on extractValue, defined on XMLType using Object relational storage, with an xpath that identifies a node that occurs at most once in each document is not a functional index, it's re-written into a plain old vanilla btree index. You can actually check this by looking in the system tables
Eg
SQL> connect system/oracle
Connected.
SQL> select table_name, index_name from all_indexes where owner = 'OE' and table_name = 'PURCHASEORDER';
TABLE_NAME INDEX_NAME
PURCHASEORDER LINEITEM_TABLE_MEMBERS
PURCHASEORDER ACTION_TABLE_MEMBERS
PURCHASEORDER SYS_C0011037
SQL> alter session set current_schema = OE
2 /
Session altered.
SQL> create unique index PO_REF_INDEX on PURCHASEORDER (extractValue(object_value,'/PurchaseOrder/Reference'));
Index created.
SQL> set lines 250
SQL> select index_name, index_type from all_indexes where owner = 'OE' and table_name = 'PURCHASEORDER';
INDEX_NAME INDEX_TYPE
PO_REF_INDEX NORMAL
LINEITEM_TABLE_MEMBERS NORMAL
ACTION_TABLE_MEMBERS NORMAL
SYS_C0011037 NORMAL
SQL> select * from dba_ind_expressions where table_name = 'PURCHASEORDER' and index_owner = 'OE'
2 /
no rows selectedFrom the above we can see that the index created on extractValue has been re-written in a plain old vanilla BTREE index, and there is no definition for it in dba_ind_expressions So assuming you were able to create the index and insert the data you should find that your index is not a functional index.
] -
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 -
Problems sorting larger sets of XMLType columns/tables
Hi,
Here's something I tried to wrap my head around:
I'm using Oracle 11g r1 for Windows Server 2003.
I've imported a fairly large set of XML files into a temporary XMLType table. Now
I want to sort the contents of the table and put them into another table which
uses a sequence to get primary keys (would be a longer story to explain, basically
sorting by this non-XML primary key is super-fast as opposed to everything else
I've tried, plus I need something unique):
INSERT INTO realtable SELECT 0, object_value
FROM tmptable ORDER BY extractValue(object_value, '/some/*/field');It works fine for a very small number of rows but when I tried with about 30000 rows,
still not too much, two kinds of things can happen. Either, Oracle gobbles up a huge amount
of memory (>1,5GB) until the statement breaks:
ORA-04030: Zu wenig Prozessspeicher fⁿr Versuch 33292 Bytes zuzuweisen
(callheap,kllcqgf:kllsltba)Or I get something like this:
ORA-00600: Interner Fehlercode, Argumente: [kqludp2], [0x1F31EC94], [0], [], [], [], [], []I haven't wasted too much time looking into this. I tried storage options clob and binary xml
for tmptable. Clob seems to induce the latter problem and binary xml the former but I haven't
made further experiments.
I can create a workaround from outside Oracle I think, so it's not serious however I'd would
be interesting to know what happened or if there is a better way to do this.
Thanks!Unfortunately, the problems are not reproducible in a meaningful way. All I can say is that once a statement will result in a kqludp2, it will always fail with the exactly same error message until I reinstall the database from scratch. On the other
side, when I found a configuration that works, I could delete and rebuild/refill a table multiple times without the thing ever breaking.
As the most recent example, after the latest trouble I deleted the database and changed my DDL scripts to the last configuration I wanted to try and broke the last time (several tables with two normal columns and an XMLType column each), everything worked like a breeze.
I can file a TAR when I get a support ID from my employer, however I installed the database on a virtual machine (I should have mentioned that earlier) and Oracle doesn't officially support that configuration from what I know so I'll doubt they'll do anything about it. I've procured a physical computer now and try to reproduce any of the problems when I get to it. -
Correct way to handle updates of XMLtype columns in standard tables.
Hello to whoever may read this,
I am currently studying the XML functionality of oracle DB for a uni project.
We have been asked to compare/contrast solutions to publishing product and price data for data stored in standard relational tables, and data stored in XML type tables. For extra marks, i am looking at a table containing an XMLType column for multiple items of data relating to the primarykey.
I have managed to get my head around publishing the data - pretty straight forward, but we have also been asked to show how we can update data, which isn't a problem within the standard tables/columns, but when it comes to the XMLType columns/tables, i dont have a clue.
At the moment i am working on trying to update an XMLtype column. The table itself is a "product" table, and contains product information, as well as an XMLType column containing multiple changes to the prices. In the relational tables, this "product" table has a one-to-many link to another table called price_history which contains details about past prices (which is populated by a trigger on update/insert of a new price). But in this table all the product changes are stored in XML format in the XML type column "prices".
Table columns: id number(4), name varchar2(25), prices xmltype;
example data: 1781, CDW 20/48/E, <product_prices><price_change>
<change_id>1</change_id>
<date_changed>2009-10-13</date_changed>
<details>price increased</details>
<new_value>234</new_value>
</price_change>
<price_change>
<change_id>2</change_id>
<date_changed>2009-10-13</date_changed>
<details>price increased</details>
<new_value>235</new_value>
</price_change></product_prices>
We need to give examples of an update. I have been looking around the net, and these forums for a solution now for about 4 hours. My own thoughts are that to update this with a new price change i need to, SELECT the current data INTO a variable, then concatenate that variable with the new price change info e.g.
<price_change>
<change_id>3</change_id>
<date_changed>2009-10-13</date_changed>
<details>price decreased</details>
<new_value>230</new_value>
</price_change>
then insert that whole chunk of data again to overwrite the old data.
Now im fairly certain there is some function somewhere which will allow me to do this update/insert operation without going through this process... After i am done with this update of XMLType column data, i need to tackle updating data in an XMLType Table with XQuery(? apparently), so if you have any pointers for that please let me know.
Could one of you experts point me in the right direction for this? Any advice at this stage is a great help and will stop me losing my mind.
p.s. im sorry about the lengthy description of the problem/solution required. How to describle something i dont understand? I ask myself.Hi,
You really need to take a look at the XMLDB Developers guide.
For updating XML with SQL/XML see UPDATEXML and for XQuery see [Using XQuery with Oracle XMLDB|http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14259/xdb_xquery.htm#sthref1673]
HTH,
Chris -
DirectToXMLTypeMapping "create-tables" not generating XMLTYPE column type
Can someone tell me how to code an XMLTYPE field such that "create-tables" will generate the XMLTYPE column and such that the IntegrityChecker will not throw an error.
I am forced to run these alters after "create-tables" is run.
ALTER TABLE XML_SYS_MSG drop column message;
ALTER TABLE XML_SYS_MSG add (message XMLType);
Snippets:
<persistence...
<property name="eclipselink.ddl-generation" value="create-tables" />
</persistence>
public class XmlMessageCustomizer implements DescriptorCustomizer {
@Override
public void customize(final ClassDescriptor descriptor) throws Exception {
final DirectToXMLTypeMapping mapping = new DirectToXMLTypeMapping();
descriptor.removeMappingForAttributeName("message");
// name of the attribute
mapping.setAttributeName("message");
// IntegrityChecker requires uppercase for oracle
// name of the column
mapping.setFieldName("MESSAGE");
descriptor.addMapping(mapping);
@Entity(name = "XmlMessage")
@Table(name = "XML_MSG")
@Customizer(XmlMessageCustomizer.class)
public class XmlMessage {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "ID")
private long id;
// @Column(columnDefinition = "XMLTYPE")
// private String message;
// ALTER TABLE XML_SYS_MSG drop column message;
// ALTER TABLE XML_SYS_MSG add (message XMLType);
private Document message;
public XmlMessage() {
public long getId() {
return id;
public void setId(final long id) {
this.id = id;
public Document getMessage() {
return message;
public void setMessage(final Document message) {
this.message = message;
Secondly if I turn on the IntegrityChecker it will fail
public class EnableIntegrityChecker implements SessionCustomizer {
@Override
public void customize(final Session session) throws Exception {
session.getIntegrityChecker().checkDatabase();
session.getIntegrityChecker().setShouldCatchExceptions(false);
}Adding:
mapping.getField().setColumnDefinition("XMLTYPE");to the customizer should solve the problem.
--Shaun -
Issue with extractvalue from table with XMLTYPE column.
I'm sure there is a simple answer but I am having problems
retrieving data from an xmltype column type.
I have two tables
descr dab_xmlName
TABLE of XMLTYPE
descr dab_testName
A NUMBER
AB NUMBER
DATA CLOB
DATA2 VARCHAR2(1600)
MYXML XMLTYPE
I have inserted the Oracle example XML purchaseOrder.xml into both dab_xml
and the myxml column in dab_test.
When I run the following:
SELECT extractvalue(OBJECT_VALUE, '/PurchaseOrder/Reference')
FROM dab_xml;
SBELL-2002100912333601PDT is returned
When I run this:
SELECT extractvalue(OBJECT_VALUE, '/PurchaseOrder/Reference')
FROM (select myxml from dab_test);
ERROR at line 1:
ORA-00904: "OBJECT_VALUE": invalid identifier
Why are the two different?
Any help will be appreciated.
Regards,
DavidIn short you want
SELECT extractvalue(myxml, '/PurchaseOrder/Reference')
FROM dab_test;This difference is that for dab_xml, there are no columns defined for the table, therefore you are [OBJECT_VALUE|http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/pseudocolumns006.htm#sthref830] as an alias for a non existent column.
With dab_test, you have a column that contains the XML so you need to use that column name instead of OBJECT_VALUE. -
Problem deleting from table with xmltype column
Hi,
Using a standard, simple screen (generated from JHeadstart), I don't seem to be able to delete from a table including an xmltype column. I have tried it even with a very simple mock table with only one column, an xmltype column, and every time I check the "delete" box and click "save", I get the following error:
oracle.jbo.RowInconsistentException: JBO-25014: Another user has changed the row with primary key oracle.jbo.Key[33 ].
I have tried this in the JDeveloper application module tester too and the result is the same.
Is it possible to delete a row from a table with an xmltype column? Am I doing something wrong? Is there something special needs done?
As I say, I did this with a one-xmltype-column table using the "Business Components from Tables" wizard, accepting all the defaults.
Thanks,
DarrenIn short you want
SELECT extractvalue(myxml, '/PurchaseOrder/Reference')
FROM dab_test;This difference is that for dab_xml, there are no columns defined for the table, therefore you are [OBJECT_VALUE|http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/pseudocolumns006.htm#sthref830] as an alias for a non existent column.
With dab_test, you have a column that contains the XML so you need to use that column name instead of OBJECT_VALUE. -
ORA-00904 on create table with xmltype column
Hi,
I am trying to create a table with syntax
CREATE TABLE ss_test(docid integer primary key, content varchar2(4000),acl XMLType)
XMLType column acl store as object relational
XMLSchema "acl.xsd" element "acl"
varray xmldata."ace" store as table ace_tab;
and getting ORA-00904.
acl.xsd is registered as
begin
dbms_xmlschema.registerschema('acl.xsd',
' <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xdb="http://xmlns.oracle.com/xdb">
<xs:element name="acl" xdb:SQLType="ACL_TYPE">
<xs:complexType>
<xs:sequence>
<xs:element name="ace" maxOccurs="100">
<xs:complexType>
<xs:attribute name="id" type="xs:integer"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>',true,true,false,false);
end;
Couldnt figure out whats wrong with the syntax. Any pointers ?
Thanks,
RakeshHmmmm ... I don't know if I should smile or frown with the implication that I am an OO guy :D :D
Most of my colleagues when I started working as a software engineer, treated me as too low-level because of my C background (started doing C in 1985).
In my last job, my colleagues hated my guts because I was asking them to squeeze every bit of performance out of C++ by using STL which is definitely not OO (although C++ is).
My current colleagues treat me as a DB guru (which I most definitely am not) and they overlook/forget the fact that most of them use Java libraries in their projects, that I wrote for them !
I am inclined to believe that I do not fall into any category in the end...
The only thing I am for sure - and I am proud of it - is inquisitive. I want to know everything there is about the tools I use, and so I end up spending hours and hours investigating... (Microsoft found that out the hard way when I filed 16 bug reports in 8 days when Visual C++ 6 came out ! Not that it hurt them though...)
This is where my confession ends (and my working on the XML validator starts...)
Καληνύχτα Marco
Philip (Φίλιππος in Greek)
PS: I did not follow the last solution anyway. I just wanted to verify its operability ;) -
Query slow in table having XMLTYPE column
Hi,
I've a table and a XMLTYPE column in it.
table:
a number
b xmltype
now when 1000 records are present and I do a select * form table it runs for 5-8 mins..
if i put an index on a and do teh query using the index still it takes 5-6 secs to retrieve a single query.
Is it normal ? I mean to say is it because of the clob it's taking time or I can tune it ?
Thanks,
ArunWhat sort of query are you running on it?
As a rule, XMLTYPE and CLOB columns tend to be big. On the other hand they would normally be stored out of line, so I don't see why they should affect a full table scan.
As is the usual case with performance questions, you must provide sufficient information for us to answer your question. Please read Rob Van Wijk's helpful guide on the sort of things we need to know (and incidentally how you can start to solve your problem yourself): [When your query takes too long|http://forums.oracle.com/forums/thread.jspa?threadID=501834&tstart=0]. Randolf Geist has knocked up a [HOW TO: Post a SQL statement tuning request |http://forums.oracle.com/forums/thread.jspa?threadID=863295] which is a template of the helpful way to layout a tuning question. Also, read [his blog on the topic|http://oracle-randolf.blogspot.com/2009/02/basic-sql-statement-performance.html]
You might also benefit from reading [Tom Kyte’s advice on how to ask questions|http://tkyte.blogspot.com/2005/06/how-to-ask-questions.html].
Cheers, APC
blog: http://radiofreetooting.blogspot.com -
Copying Long Raw Column Data to another table
hi everyone,
i am trying to Copy Long Raw Column Data to another table in the same schema. this is the situation
Table A (col1 number,col2 long raw) with 100 records
Table B (col1 number,col2 long raw) with 0 records
now i want to copy col2 of the table A into the column 2 of the table B. but long raw data cant be retrieved in a select statement so is there any specific procedure that will copy long raw data or there is any simple way.
i will be really grateful for anybody's help.
thanx
shakeelDust off that old SQL*PLUS command "COPY" ...
create table tablea (col1 number,col2 long raw)
insert into tablea values (1, testrawio.chartoraw('this is line one'));
insert into tablea values (2, testrawio.chartoraw('this is line two'));
insert into tablea values (3, testrawio.chartoraw('this is line three'));
create table tableb (col1 number,col2 long raw)
copy from scott/tiger@larry insert tableb (col1, col2) using select col1, col2 from tablea
Array fetch/bind size is 15. (arraysize is 15)
Will commit when done. (copycommit is 0)
Maximum long size is 80. (long is 80)
3 rows selected from scott@tiger.
3 rows inserted into TABLEB.
3 rows committed into TABLEB at DEFAULT HOST connection.
SQL>Now to prove it has worked :
begin
for lr in (select col1, col2 from tableb)
loop
dbms_output.put_line('col1 = '||lr.col1||
' and col2 contains long raw equivalent of '||testrawio.rawtochar(lr.col2));
end loop;
end;
col1 = 1 and col2 contains long raw equivalent of this is line one
col1 = 2 and col2 contains long raw equivalent of this is line two
col1 = 3 and col2 contains long raw equivalent of this is line three
PL/SQL procedure successfully completed.
SQL> Note : In order to load some test data and prove the method works I made use of a package called "testrawio" located at http://www.classicity.com/oracle/htdocs/forums/ClsyForumID125/7.html
AMM
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