the second record is valid. I am indeed wanting to insert two records. so why would the retrieving of the next sequence number return me a number not in sequence?
On 2010-12-08, at 12:24 PM, Chuck Hill wrote: > > On Dec 8, 2010, at 8:28 AM, Calven Eggert wrote: > >> Recently a WO app has been getting the unique constraint error when creating >> a record. This application has been running for years and so I'm surprised >> at this 'just' showing up. here is the problem: you'll see in the >> following lines that an index is retrieved for jobs_notes_seq twice because >> I'm inserting two records. next you'll see the insert statements. look at >> the notesid field. >> >> [2010-12-8 10:54:32 EST] <WorkerThread1> === Begin Internal Transaction >> [2010-12-8 10:54:32 EST] <WorkerThread1> evaluateExpression: >> <com.webobjects.jdbcadaptor.OraclePlugIn$OracleExpression: "SELECT >> JOBS_NOTES_SEQ.NEXTVAL FROM DUAL" withBindings: > >> [2010-12-8 10:54:32 EST] <WorkerThread1> 1 row(s) processed >> [2010-12-8 10:54:32 EST] <WorkerThread1> === Commit Internal Transaction >> [2010-12-8 10:54:32 EST] <WorkerThread1> === Begin Internal Transaction >> [2010-12-8 10:54:32 EST] <WorkerThread1> evaluateExpression: >> <com.webobjects.jdbcadaptor.OraclePlugIn$OracleExpression: "SELECT >> JOBS_NOTES_SEQ.NEXTVAL FROM DUAL" withBindings: > >> [2010-12-8 10:54:32 EST] <WorkerThread1> 1 row(s) processed >> [2010-12-8 10:54:32 EST] <WorkerThread1> === Commit Internal Transaction >> [2010-12-8 10:54:32 EST] <WorkerThread1> === Begin Internal Transaction >> [2010-12-8 10:54:32 EST] <WorkerThread1> evaluateExpression: >> <com.webobjects.jdbcadaptor.OraclePlugIn$OracleExpression: "INSERT INTO >> JOBS_NOTES(NOTES_SUBMITTED_BY, NOTES_HYPERLINK, NOTES_USER_VISIBLE, >> NOTES_JOB_ID, NOTES_SUBMITTED_DATE, NOTES_DESCRIPTION, NOTES_ID, >> NOTES_ATTACHMENT_NAME) VALUES (?, NULL, ?, ?, ?, ?, ?, ?)" withBindings: >> 1:204(submittedby), 2:"N"(uservisible), 3:292(jobid), 4:2010-12-08 >> 10:54:17(submitteddate), 5:"gg"(notesdescription), 6:922(notesid), >> 7:"Overview.graffle"(attachmentname)> >> [2010-12-8 10:54:32 EST] <WorkerThread1> evaluateExpression: >> <com.webobjects.jdbcadaptor.OraclePlugIn$OracleExpression: "INSERT INTO >> JOBS_NOTES(NOTES_SUBMITTED_BY, NOTES_HYPERLINK, NOTES_USER_VISIBLE, >> NOTES_JOB_ID, NOTES_SUBMITTED_DATE, NOTES_DESCRIPTION, NOTES_ID, >> NOTES_ATTACHMENT_NAME) VALUES (?, NULL, ?, ?, ?, ?, ?, ?)" withBindings: >> 1:204(submittedby), 2:"N"(uservisible), 3:292(jobid), 4:2010-12-08 >> 10:54:23(submitteddate), 5:"hh"(notesdescription), 6:56(notesid), >> 7:"Overview.graffle"(attachmentname)> >> [2010-12-8 10:54:33 EST] <WorkerThread1> === Rollback Internal Transaction >> >> see how one is 922 and another is 56? 922 is correct but the 56 should be >> 923. > > I don't think that is the problem. I think the problem is that the second > was supposed to be an UPDATE or DELETE statement. This happens when you > violate EOF commandments (not locking properly for example). EOF gets > confused between one operation and another. > > Go forth and sin no more! > > Chuck > > >> very strange. then when the records are committed, sometimes I get the >> dreaded error message: >> >> com.webobjects.eoaccess.EOGeneralAdaptorException: EvaluateExpression >> failed: <com.webobjects.jdbcadaptor.OraclePlugIn$OracleExpression: "INSERT >> INTO JOBS_NOTES(NOTES_SUBMITTED_BY, NOTES_HYPERLINK, NOTES_USER_VISIBLE, >> NOTES_JOB_ID, NOTES_SUBMITTED_DATE, NOTES_DESCRIPTION, NOTES_ID, >> NOTES_ATTACHMENT_NAME) VALUES (?, NULL, ?, ?, ?, ?, ?, ?)" withBindings: >> 1:204(submittedby), 2:"N"(uservisible), 3:292(jobid), 4:2010-12-08 >> 10:54:23(submitteddate), 5:"hh"(notesdescription), 6:56(notesid), >> 7:"Overview.graffle"(attachmentname)> >> Next exception:SQL State:23000 -- error code: 1 -- msg: ORA-00001: unique >> constraint (COREDEV3.SYS_C0031657) violated >> >> Obviously this is a problem because number 56 was already a record in the >> table. Sometimes, there is no error message and the record is not even >> created. And sometimes, when the index is correct the record is created >> successfully. argh! >> >> Anyone have this problem before or know what I can do to solve this mystery? >> (I've dropped the sequences and recreated them a couple of times. but it >> doesn't solve the problem) >> >> Thanks for your time. >> >> Calven >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net >> >> This email sent to ch...@global-village.net > > -- > Chuck Hill Senior Consultant / VP Development > > Practical WebObjects - for developers who want to increase their overall > knowledge of WebObjects or who are trying to solve specific problems. > http://www.global-village.net/products/practical_webobjects > > > > > > > _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
