It is hard to debug using debugger because the process is reading from a message queue and if I stop at a break point, the message queue will fill up and the process writing to the queue will start having problems.
This is a in-memory database so I cannot query from the command line. I tried to create database on the disk but the I/O to disk cannot keep up with the input. Hemant Shah E-mail: hj...@yahoo.com --- On Wed, 12/1/10, Black, Michael (IS) <michael.bla...@ngc.com> wrote: > From: Black, Michael (IS) <michael.bla...@ngc.com> > Subject: Re: [sqlite] Select fails even though data is in the table. > To: "General Discussion of SQLite Database" <sqlite-users@sqlite.org> > Date: Wednesday, December 1, 2010, 10:37 AM > To debug set your breakpoint on your > error statement. > Then examine col4 and build the SQL statement yourself > while still at the breakpoint. > Then run the command line shell and execute the SQL and see > what you get. > Theoretically you should see the same problem. > > In order to prove it you may need to build your SQL string > in your program and execute it by itself instead of using > prepared statements -- then you would defintely be comparing > apples-to-apples. You can't really see what the > prepared statement looks like. Then you can print out > the SQL statement that fails and perhaps see what's going > on. > > > > Michael D. Black > Senior Scientist > Advanced Analytics Directorate > Northrop Grumman Information Systems > > > ________________________________ > > From: sqlite-users-boun...@sqlite.org > on behalf of Hemant Shah > Sent: Wed 12/1/2010 10:24 AM > To: General Discussion of SQLite Database > Subject: EXTERNAL:Re: [sqlite] Select fails even though > data is in the table. > > > > This is a single thread/process. No other thread or process > is accessing the data. > > This is a single process that reads data from message queue > and dumps into database to look for duplicate rows. > > The problem occurs for some rows only (about 3 to 5 an > hour). > > > Hemant Shah > E-mail: hj...@yahoo.com > > > --- On Wed, 12/1/10, Jim Morris <jmor...@bearriver.com> > wrote: > > > From: Jim Morris <jmor...@bearriver.com> > > Subject: Re: [sqlite] Select fails even though data is > in the table. > > To: sqlite-users@sqlite.org > > Date: Wednesday, December 1, 2010, 10:15 AM > > If you have another thread running > > that deletes or modifies the table, > > then move the commit to after the select for duplicate > to > > ensure > > transactional integrity. > > > > On 12/1/2010 8:10 AM, Black, Michael (IS) wrote: > > > The problem is probably in the bind calls that > you are > > not showing. > > > If you care to share them we may be able to > help. > > > > > > Michael D. Black > > > Senior Scientist > > > Advanced Analytics Directorate > > > Northrop Grumman Information Systems > > > > > > > > > ________________________________ > > > > > > From: sqlite-users-boun...@sqlite.org > > on behalf of Hemant Shah > > > Sent: Wed 12/1/2010 10:08 AM > > > To: General Discussion of SQLite Database > > > Subject: EXTERNAL:Re: [sqlite] Select fails even > > though data is in the table. > > > > > > > > > > > > The unique key is col3 and col4 (SeqNum and > MD5Sum). > > > > > > If the insert fails for this unique key then > col4 > > should be the same. > > > It should find the row for the even if I select > for > > col4 only. > > > > > > Hemant Shah > > > E-mail: hj...@yahoo.com > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > sqlite-users mailing list > > > sqlite-users@sqlite.org > > > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > _______________________________________________ > > sqlite-users mailing list > > sqlite-users@sqlite.org > > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > > > > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > > > -----Inline Attachment Follows----- > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
