Обсуждение: Destination table by variable?
Hi!
I want to choose the destination table by a variable. Something like this:
CREATE FUNCTION insert_this(int4, varchar, varchar) RETURNS void AS $$
DECLARE
destTable text;
BEGIN
SELECT INTO destTable get_table_name($1);
INSERT INTO destTable VALUES ($2, $3);
END;
$$ LANGUAGE plpgsql;
Is it possible?
/Erik
Hello Erik,
What front end are you using? I primarily use PHP, and this procedure is
simple. You just use string operations to put together your query however
you want. Use variables, math, concactanation, or ... .
The question you need to ask is: I'm using ______ as a front end and "I want
to choose the destination table by a variable." "Is it possible?
"
Ray
----- Original Message -----
From: "Erik Dahlstrand" <df03daer@ing.hj.se>
To: <pgsql-novice@postgresql.org>
Sent: Friday, March 18, 2005 7:35 AM
Subject: [NOVICE] Destination table by variable?
Hi!
I want to choose the destination table by a variable. Something like this:
CREATE FUNCTION insert_this(int4, varchar, varchar) RETURNS void AS $$
DECLARE
destTable text;
BEGIN
SELECT INTO destTable get_table_name($1);
INSERT INTO destTable VALUES ($2, $3);
END;
$$ LANGUAGE plpgsql;
Is it possible?
/Erik
---------------------------(end of broadcast)---------------------------
TIP 3: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to majordomo@postgresql.org so that your
message can get through to the mailing list cleanly
--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.7.3 - Release Date: 3/15/2005
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.7.3 - Release Date: 3/15/2005
am 18.03.2005, um 15:35:37 +0100 mailte Erik Dahlstrand folgendes: > Hi! > > I want to choose the destination table by a variable. Something like this: > > CREATE FUNCTION insert_this(int4, varchar, varchar) RETURNS void AS $$ > DECLARE > destTable text; > BEGIN > SELECT INTO destTable get_table_name($1); > > INSERT INTO destTable VALUES ($2, $3); > END; > $$ LANGUAGE plpgsql; > > Is it possible? Yes, you can build your SQL as string and then execute this with EXECUTE. http://www.postgresql.org/docs/7.4/static/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN Andreas -- Andreas Kretschmer (Kontakt: siehe Header) Heynitz: 035242/47212, D1: 0160/7141639 GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net === Schollglas Unternehmensgruppe ===
am 18.03.2005, um 8:39:52 -0700 mailte Afton & Ray Still folgendes: > Hello Erik, > What front end are you using? I primarily use PHP, and this procedure is > simple. You just use string operations to put together your query however Please read again the question. Erik write a function in plpgsql. > " > Ray > ----- Original Message ----- From: "Erik Dahlstrand" <df03daer@ing.hj.se> Text first, and then the fullquote, is silly. And you break the thread. Andreas -- Andreas Kretschmer (Kontakt: siehe Header) Heynitz: 035242/47212, D1: 0160/7141639 GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net === Schollglas Unternehmensgruppe ===
Andreas Kretschmer <akretschmer@despammed.com> schrieb:
> Text first, and then the fullquote, is silly. And you break the thread.
^^^^^^^^^^^^^^^^^^^^^^^^^
Sorry, this was not correct.
Andreas
--
Diese Message wurde erstellt mit freundlicher Unterstützung eines freilau-
fenden Pinguins aus artgerechter Freilandhaltung. Er ist garantiert frei
von Micro$oft'schen Viren. (#97922 http://counter.li.org) GPG 7F4584DA
Was, Sie wissen nicht, wo Kaufbach ist? Hier: N 51.05082°, E 13.56889° ;-)
----- Original Message ----- From: "Andreas Kretschmer" <akretschmer@despammed.com> To: <pgsql-novice@postgresql.org> Sent: Friday, March 18, 2005 8:49 AM Subject: Re: [despammed] Re: [NOVICE] Destination table by variable? > am 18.03.2005, um 8:39:52 -0700 mailte Afton & Ray Still folgendes: >> Hello Erik, >> What front end are you using? I primarily use PHP, and this procedure is >> simple. You just use string operations to put together your query however > > Please read again the question. Erik write a function in plpgsql. > > >> " >> Ray >> ----- Original Message ----- From: "Erik Dahlstrand" <df03daer@ing.hj.se> > > Text first, and then the fullquote, is silly. And you break the thread. > > > Andreas > -- > Andreas Kretschmer (Kontakt: siehe Header) > Heynitz: 035242/47212, D1: 0160/7141639 > GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net > === Schollglas Unternehmensgruppe === > Sorry, Andreas is right, I missed those two little letters. (pl) Ray -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.3 - Release Date: 3/15/2005