Duplicate row is because of uniqueness of col3 and col4.

I will try to change the code to select  for col3 and col4, but I am not sure 
it would make any difference.


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, 10:29 AM
> I still think you should use the same
> columns for searching for the 
> duplicate that cause the collision.   Using
> col4 seem problematic.   Can 
> you change the code to use col2 and col3?
> 
> On 12/1/2010 8:24 AM, Hemant Shah wrote:
> > 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
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
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> >>
> >
> >
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