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* FW: Libpq and the SQL RETURNING clause
@ 2008-08-27 14:28 Georges.Brefort@sanofi-aventis.com
0 siblings, 1 reply; 2+ messages in thread
From: Georges.Brefort@sanofi-aventis.com @ 2008-08-27 14:28 UTC (permalink / raw)
To: pgsql-interfaces
________________________________
From: Brefort, Georges R&D/FR
Sent: Tuesday, August 26, 2008 2:41 PM
To: pgsql-interfaces@postgresql.org
Subject: Libpq and the SQL RETURNING clause
Dear Postgres specialist,
1 Assume you have a table such as the following:
CREATE TABLE example( id SERIAL, someData VARCHAR(32) );
2 Now, you use a SQL statement to insert the data and get the the id
value back:
INSERT INTO example( someData ) VALUES( 'BlaBlaBla' ) RETURNING id;
I wonder if it is possible to retrieve the value of the id field in an
application using the C libpq library.
I pretty much understand how to bind data with the libpq, or how to
retrieve result sets from a SELECT SQL statement, but not how to
retrieve data from that RETURNING clause. (I have many years of practice
of the RETURNING clause in the ORACLE C library, but that is not the
point here).
Thank you very much for your help and your patience.
With my best regards.
Georges BREFORT
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: FW: Libpq and the SQL RETURNING clause
@ 2008-08-27 23:31 Keary Suska <hierophant@pcisys.net>
parent: Georges.Brefort@sanofi-aventis.com
0 siblings, 0 replies; 2+ messages in thread
From: Keary Suska @ 2008-08-27 23:31 UTC (permalink / raw)
To: pgsql-interfaces
8/27/08 8:28 AM, also sprach Georges.Brefort@sanofi-aventis.com:
>
>
> ________________________________
>
> From: Brefort, Georges R&D/FR
> Sent: Tuesday, August 26, 2008 2:41 PM
> To: pgsql-interfaces@postgresql.org
> Subject: Libpq and the SQL RETURNING clause
>
>
> Dear Postgres specialist,
>
> 1 Assume you have a table such as the following:
>
> CREATE TABLE example( id SERIAL, someData VARCHAR(32) );
>
> 2 Now, you use a SQL statement to insert the data and get the the id
> value back:
>
> INSERT INTO example( someData ) VALUES( 'BlaBlaBla' ) RETURNING id;
>
> I wonder if it is possible to retrieve the value of the id field in an
> application using the C libpq library.
Yes. I do it all the time. Simply treat the result as if it was from a
select statement.
HTH,
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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2008-08-27 14:28 FW: Libpq and the SQL RETURNING clause Georges.Brefort@sanofi-aventis.com
2008-08-27 23:31 ` Keary Suska <hierophant@pcisys.net>
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