Hi Ronald,
 
Srinivasa and I are trying to get some help with the NULL value when starting up xwiki in Oracle 9i as well as dealing with CLob datatypes in Oracle.  Do you have any suggestions on how to get this working?  I read in the thread below last years there were suggestion to add more logic to the getters in some beans.  Did anyone ever got that to work?   We really like xWiki and are trying hard to make work with Oracle but we also have some deadlines and I hate to have to look for a replacement to xWiki.   Any help will be greatly appreciate it.
 
John G.

From: Ronald Borman [mailto:ronald.borman@gmail.com]
Sent: Wednesday, March 14, 2007 7:50 PM
To:   
Subject: Re: [xwiki-users] cannot insert NULL into ("XWIKI"."XWIKIDOC"."XWD_TITLE")

 

As Oracle is a company standard, I've investigated the use of an Oracle database.

Appearantly, during initialisation of a new XWiki database, one or more XWikiDOC records are created that contain an empty XWD_TITLE field. It seems that Oracle interprets an empty string differently than (for instance) mySQL.When a query contains a string value that is empty (""), Oracle stores this in the database as a NULL value. Because the XWD_TITLE field has a NOT NULL constraint, the exception is raised.

Oracle 10g has some kind of a switch in the form of the statement IGNORE NAV that can be included in the (Oracle specific?) MODEL clause of an SQL query. I have not tried this though, because our installation of XWiki had to be completed and it looks like the MODEL clause is not transparently supported in Hibernate.

Besides, I think there is another problem with the use of Oracle. Large text fields are implemented als a CLOB type. But searching this type of field with LIKE only accesses the first 4K of the field. There is a forum thread ( http://mail-archive.objectweb.org/xwiki-users/2006-08/msg00112.html) that mentions this and the possible use of Lucene.

Ludovic/Vincent: are there any (future) plans to support Oracle as mentioned in the forum thread?

Regards,


Ronald.

2007/3/13, Sergiu Dumitriu <sergiu.dumitriu@gmail.com>:

Hi,

There's a problem with using XWiki on Oracle, which is not solved yet. Other users got stuck on the same problem:
http://mail-archive.objectweb.org/xwiki-dev/2007-01/msg00142.html
http://mail-archive.objectweb.org/xwiki-dev/2007-01/msg00143.html
http://archivesat.com/post4701341.htm

Unfortunately, I don't have Oracle, so I can't debug it to see what's the problem.

Sergiu

 

On 3/13/07, srinivasarao.nagabhirava1@ge.com <srinivasarao.nagabhirava1@ge.com> wrote:

Hi Ludovic,

First of all thank you for your response. I have tried by removing the Calendar Plugin but still getting the similar error.

10:17:01,204  WARN [ACTIVE] ExecuteThread: '2' for queue: ' weblogic.kernel.Default (self-tuning)' http://3.170.64.77:7001/xwiki/bin/view/Main/WebHome JDBCExceptionReporter:logExceptions:71 - SQL Error: 1400, SQLState: 23000
10:17:01,211 ERROR [ACTIVE] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)' http://3.170.64.77:7001/xwiki/bin/view/Main/WebHome JDBCExceptionReporter:logExceptions:72 - ORA-01400: cannot insert NULL into ("XWIKI"."XWIKIDOC"."XWD_TITLE")

10:17:01,216  WARN [ACTIVE] ExecuteThread: '2' for queue: ' weblogic.kernel.Default (self-tuning)' http://3.170.64.77:7001/xwiki/bin/view/Main/WebHome JDBCExceptionReporter:logExceptions:71 - SQL Error: 1400, SQLState: 23000
10:17:01,221 ERROR [ACTIVE] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)' http://3.170.64.77:7001/xwiki/bin/view/Main/WebHome JDBCExceptionReporter:logExceptions:72 - ORA-01400: cannot insert NULL into ("XWIKI"."XWIKIDOC"."XWD_TITLE")

10:17:01,228 ERROR [ACTIVE] ExecuteThread: '2' for queue: ' weblogic.kernel.Default (self-tuning)' http://3.170.64.77:7001/xwiki/bin/view/Main/WebHome AbstractFlushingEventListener:performExecutions:299 - Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69)
        at org.hibernate.exception.JDBCExceptionHelper.convert (JDBCExceptionHelper.java:43)
        at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:202)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:230)
        at org.hibernate.engine.ActionQueue.executeActions (ActionQueue.java:140)
        at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296)
        at org.hibernate.event.def.DefaultFlushEventListener.onFlush ( DefaultFlushEventListener.java:27)
        at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1009)
        at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:356)
        at org.hibernate.transaction.JDBCTransaction.commit (JDBCTransaction.java:106)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:573)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java :547)
        at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:309)
        at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:100)
        at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc (XWikiCacheStore.java:94)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:891)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2292)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:674)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:566)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:281)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:382)
        at com.xpn.xwiki.web.XWikiAction.execute (XWikiAction.java:96)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java :743)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:223)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet (StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
        at weblogic.servlet.internal.FilterChainImpl.doFilter (FilterChainImpl.java:42)
        at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:121)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3243)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2003)
        at weblogic.servlet.internal.WebAppServletContext.execute (WebAppServletContext.java:1909)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1359)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run (ExecuteThread.java:181)
Caused by: java.sql.BatchUpdateException: ORA-01400: cannot insert NULL into ("XWIKI"."XWIKIDOC"."XWD_TITLE")

        at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException (DatabaseError.java:343)
        at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10698)
        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java :294)
        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294)
        at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58)
        at org.hibernate.jdbc.AbstractBatcher.executeBatch (AbstractBatcher.java:195)
        ... 40 more
com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences
Wrapped Exception: Could not execute JDBC batch update
        at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:314)
        at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:100)
        at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc (XWikiCacheStore.java:94)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:891)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2292)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:674)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:566)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:281)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:382)
        at com.xpn.xwiki.web.XWikiAction.execute (XWikiAction.java:96)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java :743)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:223)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet (StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
        at weblogic.servlet.internal.FilterChainImpl.doFilter (FilterChainImpl.java:42)
        at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:121)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3243)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2003)
        at weblogic.servlet.internal.WebAppServletContext.execute (WebAppServletContext.java:1909)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1359)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run (ExecuteThread.java:181)


Wrapped Exception:

java.sql.BatchUpdateException: ORA-01400: cannot insert NULL into ("XWIKI"."XWIKIDOC"."XWD_TITLE")

        at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException (DatabaseError.java:343)
        at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10698)
        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java :294)
        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294)
        at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58)
        at org.hibernate.jdbc.AbstractBatcher.executeBatch (AbstractBatcher.java:195)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:230)
        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
        at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions (AbstractFlushingEventListener.java:296)
        at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
        at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1009)
        at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:356)
        at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction (XWikiHibernateBaseStore.java:573)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:547)
        at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java :309)
        at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:100)
        at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:94)
        at com.xpn.xwiki.XWiki.saveDocument (XWiki.java:891)
        at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2292)
        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:674)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:566)
        at com.xpn.xwiki.XWiki.getMainXWiki (XWiki.java:281)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:382)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:96)
        at org.apache.struts.action.RequestProcessor.processActionPerform (RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet (ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run (StubSecurityHelper.java:223)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter (SetCharacterEncodingFilter.java:121)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java :3243)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute (WebAppServletContext.java:2003)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1909)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java :1359)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
10:17:01,271  WARN [ACTIVE] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'  RequestProcessor:processException:528 - Unhandled Exception thrown: class com.xpn.xwiki.XWikiException
<Mar 13, 2007 10:17:01 AM EDT> <Error> <HTTP> <BEA-101017> <[weblogic.servlet.internal.WebAppServletContext@e5376a - appName: '_appsdir_xwiki_dir', name: 'xwiki', context-path: '/xwiki'] Root cause of ServletException.
com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context
Wrapped Exception: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences
Wrapped Exception: Could not execute JDBC batch update
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:290)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:382)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:96)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java :431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        Truncated. see log file for complete stacktrace
>




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http://purl.org/net/sergiu

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