OK for now I've disposed the OracleDataReader object after every query,
and touchwood that seems to be working. Thanks alot for your help
Mark D Powell wrote:
> On Jan 18, 9:28 am, a..._at_areasix.co.uk wrote:
> > Thanks, I'm a bit of a beginner though, how would I get the cursor
> > details to delete it, or is there an automatic process I can call?
> >
> >
> >
> > gazzag wrote:
> > > a..._at_areasix.co.uk wrote:
> > > > I am recieving this error that has everybody in the company stumped!
> > > > The error is an 'ORA-01000: maximum open cursors exceeded' error. I
> > > > have looked around on the internet and not found any answers.
> >
> > > > Basically, all I'm doing is using a VB.NET application to connect to an
> > > > oracle database and run a query from a table I have created - Simply
> > > > SELECT * FROM UPDATEQUEUE WHERE UQ_UPDATED='0'
> >
> > > > When I look in the console manager, it looks like there are 300 cursors
> > > > open - but this is the only query I am running.
> >
> > > > Does anybody have any suggestions?
> >
> > > In my experience, .Net is notorious for not closing cursors it has
> > > opened.
> >
> > > Type the following at a SQL*Plus prompt:
> >
> > > SQL> show parameter open_cursors
> >
> > > NAME TYPE VALUE
> > > ------------------------------------ -----------
> > > -----------------------------
> > > open_cursors integer 300
> > > SQL>
> >
> > > The indicates the maximum number of open cursors allowed per session on
> > > that database - 300 in my case and yours too, by the sound of it.
> > > Either:
> >
> > > 1. Re-write the VB code to close any cursors it opens, or
> >
> > > 2. Get your DBA to up the open_cursors parameter for that particular
> > > database.
> >
> > > Although, why anyone should need more than 300 is beyond me. My
> > > preference would be to correct the VB code.
> >
> > > HTH
> >
> > > -g- Hide quoted text -- Show quoted text -
>
> I have also seen the open cursors problem from .net code where the code
> was supposedly closing the cursor. You might want to check the manuals
> for the connection pooling options/parameters. It seems that the
> developers actually had to make a couple of changes to eliminate the
> problem.
>
> Better yet, code in java.
>
> HTH -- Mark D Powell --
Received on Thu Jan 18 2007 - 10:31:17 CST
