Sequenced primary key slowed down my database!
I have a table (11 million rows) which was extremely slow for searches (more than 30 seconds) and I thought it's because the records were not unique and I did not have primary key for it. So I decided to add a column and put a sequence in it with a trigger for inserts that fills the field as a primary key. I also updated the statistics for the table. But this alone made the searches a lot slower. Just a sorting takes more than 10 minutes now. Does anybody have any idea what could have gone wrong?!
I'm working with application express 4.1 and oracle 11g if that matters.
I appreciate any help.
I don't know if this helps:
SQL> show parameter optimizer
NAME TYPE VALUE
optimizer_capture_sql_plan_baselines boolean FALSE
optimizer_dynamic_sampling integer 2
optimizer_features_enable string 11.2.0.1
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string ALL_ROWS
optimizer_secure_view_merging boolean TRUE
optimizer_use_invisible_indexes boolean FALSE
optimizer_use_pending_statistics boolean FALSE
optimizer_use_sql_plan_baselines boolean TRUE
SQL> show parameter db_file_multi
NAME TYPE VALUE
db_file_multiblock_read_count integer 64
SQL> show parameter db_block_size
NAME TYPE VALUE
db_block_size integer 8192
SQL> show parameter cursor_sharing
NAME TYPE VALUE
cursor_sharing string EXACT
SQL> column sname format a20
SQL> column pname format a20
SQL> column pval2 format a20
SQL>
SQL> select
2 sname
3 , pname
4 , pval1
5 , pval2
6 from
7 sys.aux_stats$;
SNAME PNAME PVAL1 PVAL2
SYSSTATS_INFO STATUS COMPLETED
SYSSTATS_INFO DSTART 04-02-2010 14:19
SYSSTATS_INFO DSTOP 04-02-2010 14:19
SYSSTATS_INFO FLAGS 1
SYSSTATS_MAIN CPUSPEEDNW 1683.65129
SYSSTATS_MAIN IOSEEKTIM 10
SYSSTATS_MAIN IOTFRSPEED 4096
SYSSTATS_MAIN SREADTIM
SYSSTATS_MAIN MREADTIM
SYSSTATS_MAIN CPUSPEED
SYSSTATS_MAIN MBRC
SNAME PNAME PVAL1 PVAL2
SYSSTATS_MAIN MAXTHR
SYSSTATS_MAIN SLAVETHR
13 rows selected.
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The message was edited by bisser:
Added info that the exception occurs "when I issue commit()" on step 7.I'm extremely surprised that you couldn't reproduce the error. It's reproduced each time when I run the Test Scenario that I described above.
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Here's the FINEST log:
[TopLink Finest]: 2008.01.09 07:35:58.094--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.weaving; value=false
[TopLink Finest]: 2008.01.09 07:35:59.312--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.orm.throw.exceptions; default value=true
[TopLink Finer]: 2008.01.09 07:35:59.312--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--Searching for default mapping file in file:/D:/dev/bull/jpa_pk_bug/bin/
[TopLink Config]: 2008.01.09 07:35:59.547--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--The alias name for the entity class [class test.jpa.entities.Person] is being defaulted to: Person.
[TopLink Config]: 2008.01.09 07:35:59.594--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--The column name for element [private java.lang.Long test.jpa.entities.Person.id] is being defaulted to: ID.
[TopLink Config]: 2008.01.09 07:35:59.609--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--The column name for element [private java.lang.String test.jpa.entities.Person.name] is being defaulted to: NAME.
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[TopLink Finer]: 2008.01.09 07:35:59.703--Thread(Thread[Main Thread,5,main])--cmp_init_transformer_is_null
[TopLink Finest]: 2008.01.09 07:35:59.703--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--begin predeploying Persistence Unit Test; state Predeployed; factoryCount 0
[TopLink Finest]: 2008.01.09 07:35:59.703--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--end predeploying Persistence Unit Test; state Predeployed; factoryCount 1
[TopLink Finest]: 2008.01.09 07:35:59.719--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--begin deploying Persistence Unit Test; state Predeployed; factoryCount 1
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[TopLink Finest]: 2008.01.09 07:35:59.734--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.logging.level; value=FINEST; translated value=FINEST
[TopLink Finest]: 2008.01.09 07:35:59.750--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.jdbc.user; value=rms
[TopLink Finest]: 2008.01.09 07:35:59.750--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.jdbc.password; value=xxxxxx
[TopLink Finest]: 2008.01.09 07:36:00.766--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.target-database; value=Oracle; translated value=oracle.toplink.essentials.platform.database.oracle.OraclePlatform
[TopLink Finest]: 2008.01.09 07:36:00.781--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.jdbc.driver; value=oracle.jdbc.OracleDriver
[TopLink Finest]: 2008.01.09 07:36:00.781--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--property=toplink.jdbc.url; value=jdbc:oracle:thin:@//10.20.6.126:1521/region2
[TopLink Info]: 2008.01.09 07:36:00.797--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--TopLink, version: Oracle TopLink Essentials - 2.0 (Build b58g-fcs (09/07/2007))
[TopLink Config]: 2008.01.09 07:36:00.812--ServerSession(1968077)--Connection(5182312)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:01.797--ServerSession(1968077)--Connection(4252099)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Config]: 2008.01.09 07:36:01.797--ServerSession(1968077)--Connection(5744890)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:01.875--ServerSession(1968077)--Connection(5747801)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Config]: 2008.01.09 07:36:01.891--ServerSession(1968077)--Connection(5760373)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:01.969--ServerSession(1968077)--Connection(5763284)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Config]: 2008.01.09 07:36:01.969--ServerSession(1968077)--Connection(5497095)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:02.047--ServerSession(1968077)--Connection(5500006)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Config]: 2008.01.09 07:36:02.047--ServerSession(1968077)--Connection(5512041)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:02.125--ServerSession(1968077)--Connection(5514977)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Config]: 2008.01.09 07:36:02.125--ServerSession(1968077)--Connection(5527528)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:02.203--ServerSession(1968077)--Connection(5530440)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Config]: 2008.01.09 07:36:02.203--ServerSession(1968077)--Connection(5542993)--Thread(Thread[Main Thread,5,main])--connecting(DatabaseLogin(
platform=>OraclePlatform
user name=> "rms"
datasource URL=> "jdbc:oracle:thin:@//10.20.6.126:1521/region2"
[TopLink Config]: 2008.01.09 07:36:02.281--ServerSession(1968077)--Connection(5545904)--Thread(Thread[Main Thread,5,main])--Connected: jdbc:oracle:thin:@//10.20.6.126:1521/region2
User: RMS
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 10.2.0.1.0
[TopLink Finest]: 2008.01.09 07:36:02.312--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--sequencing connected, state is Preallocation_NoTransaction_State
[TopLink Info]: 2008.01.09 07:36:02.484--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--file:/D:/dev/bull/jpa_pk_bug/bin/-Test login successful
[TopLink Finest]: 2008.01.09 07:36:02.484--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--end deploying Persistence Unit Test; state Deployed; factoryCount 1
[TopLink Finer]: 2008.01.09 07:36:02.516--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--client acquired
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[TopLink Finest]: 2008.01.09 07:36:03.297--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--sequencing preallocation for PERSONS_ID_SEQ: objects: 1 , first: 5, last: 5
[TopLink Finest]: 2008.01.09 07:36:03.312--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--assign sequence to the object (5 -> test.jpa.entities.Person@563c8c)
[TopLink Finest]: 2008.01.09 07:36:03.328--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--Execute query ReadObjectQuery(test.jpa.entities.Person)
[TopLink Fine]: 2008.01.09 07:36:03.438--ServerSession(1968077)--Connection(4252099)--Thread(Thread[Main Thread,5,main])--SELECT ID, NAME, MGR_ID FROM Persons WHERE (ID = ?)
bind => [1]
[TopLink Finest]: 2008.01.09 07:36:03.531--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--Register the existing object test.jpa.entities.Person@3a4484
[TopLink Finer]: 2008.01.09 07:36:03.625--ClientSession(5666151)--Connection(5763284)--Thread(Thread[Main Thread,5,main])--begin transaction
[TopLink Finest]: 2008.01.09 07:36:03.625--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--Execute query UpdateObjectQuery(test.jpa.entities.Person@3a57fa)
[TopLink Finest]: 2008.01.09 07:36:03.641--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--Execute query WriteObjectQuery(test.jpa.entities.Person@563c8c)
[TopLink Fine]: 2008.01.09 07:36:03.656--ClientSession(5666151)--Connection(5763284)--Thread(Thread[Main Thread,5,main])--INSERT INTO Persons (ID, NAME, MGR_ID) VALUES (?, ?, ?)
bind => [5, Boss, null]
[TopLink Fine]: 2008.01.09 07:36:03.688--ClientSession(5666151)--Connection(5763284)--Thread(Thread[Main Thread,5,main])--UPDATE Persons SET MGR_ID = ? WHERE (ID = ?)
bind => [5, 1]
[TopLink Finer]: 2008.01.09 07:36:03.703--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--begin unit of work commit
[TopLink Finest]: 2008.01.09 07:36:03.703--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--Execute query UpdateObjectQuery(test.jpa.entities.Person@563c8c)
[TopLink Warning]: 2008.01.09 07:36:03.812--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--Local Exception Stack:
Exception [TOPLINK-7251] (Oracle TopLink Essentials - 2.0 (Build b58g-fcs (09/07/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: The attribute [id] of class [test.jpa.entities.Person] is mapped to a primary key column in the database. Updates are not allowed.
at oracle.toplink.essentials.exceptions.ValidationException.primaryKeyUpdateDisallowed(ValidationException.java:2222)
at oracle.toplink.essentials.mappings.foundation.AbstractDirectMapping.writeFromObjectIntoRowWithChangeRecord(AbstractDirectMapping.java:750)
at oracle.toplink.essentials.internal.descriptors.ObjectBuilder.buildRowForUpdateWithChangeSet(ObjectBuilder.java:948)
at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.updateObjectForWriteWithChangeSet(DatabaseQueryMechanism.java:1263)
at oracle.toplink.essentials.queryframework.UpdateObjectQuery.executeCommitWithChangeSet(UpdateObjectQuery.java:91)
at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:390)
at oracle.toplink.essentials.queryframework.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:109)
at oracle.toplink.essentials.queryframework.DatabaseQuery.execute(DatabaseQuery.java:628)
at oracle.toplink.essentials.queryframework.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:555)
at oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:138)
at oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:110)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2233)
at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:952)
at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:909)
at oracle.toplink.essentials.internal.sessions.CommitManager.commitChangedObjectsForClassWithChangeSet(CommitManager.java:309)
at oracle.toplink.essentials.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:195)
at oracle.toplink.essentials.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:2657)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1044)
at oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:403)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1126)
at oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:107)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:856)
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:102)
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:60)
at test.jpa.TestPkBug.runTest(TestPkBug.java:53)
at test.jpa.TestPkBug.main(TestPkBug.java:95)
[TopLink Finer]: 2008.01.09 07:36:03.828--ClientSession(5666151)--Connection(5763284)--Thread(Thread[Main Thread,5,main])--rollback transaction
[TopLink Finer]: 2008.01.09 07:36:03.844--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--release unit of work
[TopLink Finer]: 2008.01.09 07:36:03.844--UnitOfWork(5663897)--Thread(Thread[Main Thread,5,main])--initialize identitymaps
[TopLink Finer]: 2008.01.09 07:36:03.844--ClientSession(5666151)--Thread(Thread[Main Thread,5,main])--client released
[TopLink Finest]: 2008.01.09 07:36:03.844--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--begin undeploying Persistence Unit Test; state Deployed; factoryCount 1
[TopLink Finest]: 2008.01.09 07:36:03.844--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--sequencing disconnected
[TopLink Config]: 2008.01.09 07:36:03.844--ServerSession(1968077)--Connection(4252099)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Finer]: 2008.01.09 07:36:03.859--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--initialize identitymaps
[TopLink Info]: 2008.01.09 07:36:03.859--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--file:/D:/dev/bull/jpa_pk_bug/bin/-Test logout successful
[TopLink Config]: 2008.01.09 07:36:03.859--ServerSession(1968077)--Connection(5747801)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Config]: 2008.01.09 07:36:03.859--ServerSession(1968077)--Connection(5182312)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Config]: 2008.01.09 07:36:03.859--ServerSession(1968077)--Connection(5500006)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Config]: 2008.01.09 07:36:03.875--ServerSession(1968077)--Connection(5514977)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Config]: 2008.01.09 07:36:03.875--ServerSession(1968077)--Connection(5530440)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Config]: 2008.01.09 07:36:03.875--ServerSession(1968077)--Connection(5545904)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Config]: 2008.01.09 07:36:03.891--ServerSession(1968077)--Connection(5763284)--Thread(Thread[Main Thread,5,main])--disconnect
[TopLink Finest]: 2008.01.09 07:36:03.891--ServerSession(1968077)--Thread(Thread[Main Thread,5,main])--end undeploying Persistence Unit Test; state Undeployed; factoryCount 0
Exception in thread "Main Thread" javax.persistence.RollbackException: Exception [TOPLINK-7251] (Oracle TopLink Essentials - 2.0 (Build b58g-fcs (09/07/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: The attribute [id] of class [test.jpa.entities.Person] is mapped to a primary key column in the database. Updates are not allowed.
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:120)
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:60)
at test.jpa.TestPkBug.runTest(TestPkBug.java:53)
at test.jpa.TestPkBug.main(TestPkBug.java:95)
Caused by: Exception [TOPLINK-7251] (Oracle TopLink Essentials - 2.0 (Build b58g-fcs (09/07/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: The attribute [id] of class [test.jpa.entities.Person] is mapped to a primary key column in the database. Updates are not allowed.
at oracle.toplink.essentials.exceptions.ValidationException.primaryKeyUpdateDisallowed(ValidationException.java:2222)
at oracle.toplink.essentials.mappings.foundation.AbstractDirectMapping.writeFromObjectIntoRowWithChangeRecord(AbstractDirectMapping.java:750)
at oracle.toplink.essentials.internal.descriptors.ObjectBuilder.buildRowForUpdateWithChangeSet(ObjectBuilder.java:948)
at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.updateObjectForWriteWithChangeSet(DatabaseQueryMechanism.java:1263)
at oracle.toplink.essentials.queryframework.UpdateObjectQuery.executeCommitWithChangeSet(UpdateObjectQuery.java:91)
at oracle.toplink.essentials.internal.queryframework.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:390)
at oracle.toplink.essentials.queryframework.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:109)
at oracle.toplink.essentials.queryframework.DatabaseQuery.execute(DatabaseQuery.java:628)
at oracle.toplink.essentials.queryframework.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:555)
at oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:138)
at oracle.toplink.essentials.queryframework.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:110)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2233)
at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:952)
at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:909)
at oracle.toplink.essentials.internal.sessions.CommitManager.commitChangedObjectsForClassWithChangeSet(CommitManager.java:309)
at oracle.toplink.essentials.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:195)
at oracle.toplink.essentials.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:2657)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1044)
at oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:403)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1126)
at oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:107)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:856)
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:102)
... 3 moreEDIT: Are you using the EXACT Test Case as I have described it in the previous posts? It's important that you commit(), and not rollback(), the transaction after the flush.
EDIT: Updated the log because I found out that I had made a small change to the original Test Case while I was trying to find a workaround. The current log is produced by the EXACT Test Case I described in my previous posts.
Message was edited by:
bisser -
Composite Primary key & Primary key questions
Background:
1.5 TB data warehouse. All tables use at least a 3 column composite Primary key. Most use 3. col1||col2||col3 to achieve uniqueness.
col1= very low cardinality. 99% of the values are '0'
col2 = high cardinality. (SSN's, loaded monthly)
col3 = low cardinality. (monthly sequence number used for partitioning)
From what I've read, the first column used in a composite primary key also receives its own index. If that is correct, then the primary key being used is losing its effectiveness by putting a very low cardinality column as the first column of the Primary key. By moving col2 to the first position of the composite key, I would be obtaining an index on SSN which would be much more useful. (Please correct me if I'm wrong) Or since the index would be so large anyway, the CBO would just do full table scans which is what I'm trying to get away from.
This Primary key is used to ensure uniqueness during loads. Other than that, it really has no purpose and is never queried by the user. (WHERE col1||col2||col3 = xxxxxxxxx)
As a DBA, I see this massive tablespace for holding the primary keys now reaching in excess of 157 GB and it seems like such a waste of space. The problem I'm running across is how to ensure uniqueness during the loads w/o having to store the unique values. (the 157 GB) If I drop the PK's, then create unique indexes just for the loads, then the unique index would be generated against the entire table, which would take forever.
If you create a local index (what I want in the end) it still has to create the index for all previous partitions (250+ partitions). You can't create a specific 'local' index on a partition. You create a local index on the table and when a new partition is added, the index is then added as well. That's what I want to do with some of my fields like SSN but for loading purposes, this isn't going to help me.
I need a way to ensure uniqueness during a monthly load of a new partition (col1||col2||col3) but w/o having to store these values for eternity. Right now it's the primary key, so it has to be stored. I hope I'm making sense here. Any ideas?I think you need some clarification about the index supporting the primary key.
The primary key is unique - the database will enforce this for you.
All of the columns in the primary key are in the index that enforces the key (not just the first column).
Usually this index is a unique index, but you can have a non-unique index supporting a primary key.
I'm a little confused with some of your other statements
how to ensure uniqueness during the loads w/o having to store the unique valuesIf you don't store the value how do you know it is unique?
Did you mean that you don't want to store the key values in both the table and the index?
You may want to consider making col3 (the partition key) the leading column of the index, so you can create a local (instead of global) PK index.
I wouldn't worry too much about col1 (the column full of mostly zeros) - numbers are stored variable length. A NUMBER(38) that holds a zero takes no more space than a NUMBER(1) that holds a zero. -
How do use primary keys generated by database within entity bean?
DBMS primary key generation uses a set of deployment descriptors that
are specified at compile time to generate container code which is used
in conjunction with a supported database to provide key generation
support. Specify the name of the supported DBMS and the generator name,
if required by the database. Generated primary key support for Oracle
databases use Oracle's SEQUENCE. Once the SEQUENCE already exists in the
database, you specify automatic key generation in the XML deployment
descriptors. In the weblogic-cmp-rdbms-jar.xml file
<automatic-key-generation>
<generator-type>ORACLE</generator-type>
<generator_name>test_sequence</generator-name>
<key-cache-size>10</key-cache-size>
</automatic-key-generator>
You need to specify the name of the ORACLE SEQUENCE to be used in the
generator-name element. If the ORACLE SEQUENCE was created with an
INCREMENT value, then you must specify a key-cache-size. This value must
match the Oracle SEQUENCE INCREMENT value.
Owen wrote:
How do use primary keys generated by database within entity bean? -
Populating primary key from My SQL
I have a table called MEMBERS in MY SQL with BEFORE INSERT trigger on it to create the primary key. Trigger works when I use the MYSQL prompt to insert. By Using BC in 10.1.3 , I want to populate the primary key (memberid) when insert any record in to this table. In the model, 'primary key','& TRansient' are the only properties selected for the entity.
When I insert using BC the record in not being created. How do I make it work.
Following is the trigger on the table.
CREATE OR REPLACE TRIGGER ASSIGN_MEM_ID
BEFORE INSERT ON MEMBERS FOR EACH ROW
BEGIN
IF :NEW.MEMBERID IS NULL OR :NEW.MEMBERID < 0 THEN
SELECT memid
INTO :NEW.MEMBERID
FROM MemberSequence;
UPDATE MemberSequence
SET memid= memid+1;
END IF;
END;
Any help is appreciated.
Thanks
nkTry using the DBSequence data type for the column.
see "6.6.3.8 Trigger-Assigned Primary Key Values from a Database Sequence" in the ADF Developer Guide.
http://download.oracle.com/docs/html/B25947_01/bcentities006.htm#sm0147 -
Automatic primary key generation for pointbase
Hello friends,
I was wondering whether it is possible to automatically generate primary keys for a pointbase database. Just like the SQL Server pointbase also has a indentity property. I have used weblogic builder to specify automatic key generation. Through the pointbase console I can see that all the columns for all the tables are marked as nullable except the primary key columns. However when I try to insert data into the database using ejb. I get the exception :
javax.ejb.EJBException: EJB Exception:: java.sql.SQLException: Data exception -- null value not allowed. .
at com.pointbase.net.netJDBCPrimitives.handleResponse(Unknown Source)
at com.pointbase.net.netJDBCPrimitives.handlePrimitiveResponse(Unknown Source)
at com.pointbase.net.netJDBCPreparedStatement.executeUpdate(Unknown Source)
at weblogic.jdbc.wrapper.PreparedStatement.executeUpdate(PreparedStatement.java:94)
at yellowpages.ejb.DirectoryItem.DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.__WL_create(DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.java:3177)
at yellowpages.ejb.DirectoryItem.DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.ejbPostCreate(DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.java:3094)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at weblogic.ejb20.manager.DBManager.create(DBManager.java:1151)
at weblogic.ejb20.manager.DBManager.localCreate(DBManager.java:1100)
at weblogic.ejb20.internal.EntityEJBLocalHome.create(EntityEJBLocalHome.java:171)
at yellowpages.ejb.DirectoryItem.DirectoryItem_lh4yf1_LocalHomeImpl.create(DirectoryItem_lh4yf1_LocalHomeImpl.java:94)
at yellowpages.web.controller.AddEntryAction.execute(Unknown Source)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
; nested exception is: java.sql.SQLException: Data exception -- null value not allowed. .
java.sql.SQLException: Data exception -- null value not allowed. .
at com.pointbase.net.netJDBCPrimitives.handleResponse(Unknown Source)
at com.pointbase.net.netJDBCPrimitives.handlePrimitiveResponse(Unknown Source)
at com.pointbase.net.netJDBCPreparedStatement.executeUpdate(Unknown Source)
at weblogic.jdbc.wrapper.PreparedStatement.executeUpdate(PreparedStatement.java:94)
at yellowpages.ejb.DirectoryItem.DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.__WL_create(DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.java:3177)
at yellowpages.ejb.DirectoryItem.DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.ejbPostCreate(DirectoryItem_lh4yf1__WebLogic_CMP_RDBMS.java:3094)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at weblogic.ejb20.manager.DBManager.create(DBManager.java:1151)
at weblogic.ejb20.manager.DBManager.localCreate(DBManager.java:1100)
at weblogic.ejb20.internal.EntityEJBLocalHome.create(EntityEJBLocalHome.java:171)
at yellowpages.ejb.DirectoryItem.DirectoryItem_lh4yf1_LocalHomeImpl.create(DirectoryItem_lh4yf1_LocalHomeImpl.java:94)
at yellowpages.web.controller.AddEntryAction.execute(Unknown Source)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)I am not sure whether I understand your question.
The 'NamedSequenceTable' method is independent of data base type.
<from-docs>
Create a table named SEQUENCE to hold the current primary key value. The
table consists of a single row with a single column, as defined by the
following statement:
CREATE table_name (SEQUENCE int)
INSERT into table_name VALUES (0)
</from-docs>
Then, you can add the following in the DD -
<automatic-key-generation>
<generator-type>NamedSequenceTable</generator-type>
<generator_name>table_name</generator-name>
<key-cache-size>100</key-cache-size>
</automatic-key-generation>
The PK type should be set to java.lang.Integer or java.lang.Long
--Sathish
<Panduranga Swamy> wrote in message news:[email protected]..
Hi,
With named sequecne table,I am able to develop the application. What I
wanted is Say Table 1 having Identity column as Primary key in the table
Pointbase database.
With Automatic primary key generation in Deployment descriptor, We
generally specify SQL_SERVER or Named Sequencetable for Primary key
generation.
For pointbase database, I dont know how to configure this?
Could you help me in this regard,
Thanks,
Pandu
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