From: | Klint Gore <kgore4(at)une(dot)edu(dot)au> |
---|---|
To: | "Bright D(dot)L(dot)" <dl_bright(at)star-quest(dot)com> |
Cc: | Craig Ringer <craig(at)postnewspapers(dot)com(dot)au>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: SELECT Query returns empty |
Date: | 2008-07-10 02:41:15 |
Message-ID: | 487576CB.3070805@une.edu.au |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Bright D.L. wrote:
> Processes P1 and P2 are executables developed in VC++. These are the
> steps performed by P1 before sending the TCP packet (which acts as a
> trigger) to P2.
>
> 1) Create an insertion query
> 2) Execute the query
> 3) Execute a 'Commit' command
> 4) Repeat 2 and 3 how many ever times needed
> 5) 'Select' part of the last 'insert'ed data to verify whether it is
> accessible
> 6) Repeat 6 till the data is available
> 7) Send a TCP packet to P2 to start its 'Select' query
>
Is there any chance that P2 is still in transaction from its last query?
Once step 6 completes, can psql see the data?
Does "select * from pg_stat_activity" show anything unexpected?
Are you directly using libpq or some other connection method?
klint.
--
Klint Gore
Database Manager
Sheep CRC
A.G.B.U.
University of New England
Armidale NSW 2350
Ph: 02 6773 3789
Fax: 02 6773 3266
EMail: kgore4(at)une(dot)edu(dot)au
From | Date | Subject | |
---|---|---|---|
Next Message | Hendra | 2008-07-10 02:53:43 | Array as parameter for stored procedure |
Previous Message | Bright D.L. | 2008-07-10 02:32:14 | Re: SELECT Query returns empty |