Rick, I tried closeAll() but still got ora-00604 if the loop times is numberous. I think it proves it is not an issue of openJPA and I will find the solution from Oracle JDBC driver or datapase parameters directions.
Anyway, I appreciate your prompt help a lot. Regards, Yu Wang On Tue, Mar 11, 2014 at 11:29 PM, yu wang <wangy...@gmail.com> wrote: > Rick, > I believe openjpa does not close the statement promptly OR an oracle > database jdbc driver issue. It seem if manager is used to create a lot of > native queries in a loop, the cursors in Oracle database will not be > released promptly enough. I am using ojdbc6.jar + openjpa-1.2.3.jar. > Anyway, I will try the cast method. thanks in advance. > > Regards, > Yu Wang > > > On Tue, Mar 11, 2014 at 10:01 PM, Rick Curtis <curti...@gmail.com> wrote: > >> No, your question still isn't very clear. >> >> > Actually I just want to find a OpenJpa equivalence to close() method of >> JDBC >> Statement class >> I believe that after OpenJPA is done processing a native query we will >> close the statement. If that isn't happening, you could try to cast your >> query to an OpenJPAQuery and call .closeAll() on it once you are done >> using >> it. >> >> Hope this helps. >> Rick >> >> >> On Tue, Mar 11, 2014 at 5:21 AM, yu wang <wangy...@gmail.com> wrote: >> >> > Actually I just want to find a OpenJpa equivalence to close() method of >> > JDBC Statement class.... >> > >> > >> > On Tue, Mar 11, 2014 at 5:56 PM, yu wang <wangy...@gmail.com> wrote: >> > >> > > Hi Rick, >> > > Is my case description clear enough? Any suggestions? >> > > >> > > Regards, >> > > Yu Wang >> > > >> > > >> > > On Sat, Mar 8, 2014 at 3:36 PM, yu wang <wangy...@gmail.com> wrote: >> > > >> > >> Hi Rick, >> > >> I have two very big master/slave tale I made them equal-partitioned >> by >> > >> time stamp columns. So when users query something from two tables, I >> > >> separate the sql into a lot small sql for a lot of very small >> interval >> > in a >> > >> loop to expedite the Execution of the SQL. >> > >> Then I got "too many cursors" opened error from Oracle. What I am >> trying >> > >> to is getting a way to close the cursor explicitly after get its >> result >> > >> list. >> > >> >> > >> Regards, >> > >> Yu Wang >> > >> >> > >> >> > >> >> > >> >> > >> On Fri, Mar 7, 2014 at 10:00 PM, Rick Curtis <curti...@gmail.com> >> > wrote: >> > >> >> > >>> You're going to have to give a better description of your scenario >> for >> > us >> > >>> to help you. >> > >>> >> > >>> Thanks, >> > >>> Rick >> > >>> >> > >>> >> > >>> On Fri, Mar 7, 2014 at 3:37 AM, yu wang <wangy...@gmail.com> wrote: >> > >>> >> > >>> > Hi Gurus, >> > >>> > I have manager.createNativeQuery() in a loop eventually lead to >> > Oracle >> > >>> > error: >> > >>> > ORA-00604 and ORA-01000, which means cursors open in the oracle >> > exceed >> > >>> the >> > >>> > maximum. >> > >>> > >> > >>> > My question is how can I close some cursors explicitly in a loop? >> I >> > try >> > >>> > manager.clear() but seems it does not work. >> > >>> > >> > >>> > We are using OpenJPA 1.2.3. >> > >>> > >> > >>> > Regards, >> > >>> > Yu Wang >> > >>> > >> > >>> >> > >>> >> > >>> >> > >>> -- >> > >>> *Rick Curtis* >> > >>> >> > >> >> > >> >> > > >> > >> >> >> >> -- >> *Rick Curtis* >> > >
