not sure this is in yours or not, but i think the method you want is OraclePlugIn's updateLOBs method.
ms On May 25, 2011, at 12:30 PM, Michael Hast wrote: > Hi: > > Thanks for the hint. The external type is all caps VARCHAR2. There is no > surprise there. I will try out the Wonder Oracle plugin and see how it > behaves. > > Michael. > > On 5/25/2011 4:14 AM, Mike Schrag wrote: >> Out of curiosity ..... Any chance the external types of those other locking >> attributes are not in all caps? "varchar2" vs "VARCHAR2"? >> >> Sent from my iPhone >> >> On May 25, 2011, at 1:07 AM, Chuck Hill<ch...@global-village.net> wrote: >> >>> Hi Michael, >>> >>> On May 24, 2011, at 8:43 PM, Michael Hast wrote: >>> >>>> Hi: >>>> >>>> We had an interesting problem today. We have an entity called ReviewerData >>>> which has a personId and fiscalYear compound primary key. It also has 3 >>>> more attributes, a CLOB field, a varchar2(4000) and an Integer attribute. >>>> All attributes except the CLOB are marked as a locking attribute (see >>>> attached image). >>>> >>>> When we are updating the CLOB field and any of the other 2 attributes and >>>> call EC saveChanges, we are getting the error: >>>> >>>> Expected a LOB count of 0 but could not fetch that many objects. >>>> >>>> The issues is that there are 2 SQL statements being generated by the >>>> Oracle plugin within 1 transaction: >>>> >>>> UPDATE REVIEWER_DATA SET HAS_DONE_EXTERNAL_REVIEW = ?, >>>> REVIEW_QUALIFICATIONS = EMPTY_CLOB() WHERE (PERSON_ID = ? AND FISCAL_YEAR >>>> = ? AND DESCRIPTION_OF_WORK = ? AND HAS_DONE_EXTERNAL_REVIEW = ?) >>>> withBindings: 1:0, 2:97208, 3:2012, 4:"ABC", 5:1 >>>> >>>> SELECT t0.REVIEW_QUALIFICATIONS FROM REVIEWER_DATA t0 WHERE (t0.PERSON_ID >>>> = ? AND t0.FISCAL_YEAR = ? AND t0.DESCRIPTION_OF_WORK = ? AND >>>> t0.HAS_DONE_EXTERNAL_REVIEW = ?) FOR UPDATE withBindings: 1:97208, 2:2012, >>>> 3:"ABC", 4:1 >>> >>> When you see "SELECT ... FOR UPDATE" that is often a sign that something >>> has gone wrong in EOF (e.g. you have hit a bug). In this case, however, I >>> think it is just trying to update the CLOB. >>> >>>> >>>> The SELECT statement fails, causing the error above. If I don't have a >>>> compound PK, only have a single PK attribute (personId), the SELECT >>>> statement only has one column in the where clause and all works great: >>>> >>>> SELECT t0.REVIEW_QUALIFICATIONS FROM REVIEWER_DATA t0 WHERE (t0.PERSON_ID >>>> = ?) FOR UPDATE withBindings: 1:97208 >>>> >>>> I believe there is a bug in how the SQL is being generated. In the where >>>> clause it should only use the 2 PK attributes rather than all the lock >>>> attributes. >>>> >>>> My question is how can I fix this? Is it the Oracle plugin? Wonder has an >>>> Oracle plugin, should I try that out first? >>> >>> >>> I would try that first. Second, you could move REVIEW_QUALIFICATIONS to >>> its own table with a generated PK and a 1-1 relationship from Reviewer >>> Data. There is a good chance that would avoid the problem. >>> >>> >>> Chuck >>> >>> -- >>> Chuck Hill Senior Consultant / VP Development >>> >>> Come to WOWODC this July for unparalleled WO learning opportunities and >>> real peer to peer problem solving! Network, socialize, and enjoy a great >>> cosmopolitan city. See you there! http://www.wocommunity.org/wowodc11/ >>> >>> _______________________________________________ >>> 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/mschrag%40pobox.com >>> >>> This email sent to msch...@pobox.com > > -- > Tel: (602) 279-4600 ext: 635 > Desert Sky Software: www.desertsky.com > Specializing in the Development and Hosting of > e-Business Applications. > _______________________________________________ > 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/mschrag%40pobox.com > > This email sent to msch...@pobox.com _______________________________________________ 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
