From: tobbe <tobbe@tripnet.se>
To: pgsql-sql@postgresql.org
Subject: automatic update or insert
Date: 19 Oct 2005 23:36:24 -0700
Message-ID: <1129790184.351579.302550@g47g2000cwa.googlegroups.com> (raw)
Hi.
I have a little problem.
In a system of mine i need to insert records into table [tbStat], and
if the records exist i need to update them instead and increase a
column [cQuantity] for every update.
I.e. the first insert sets cQuantity to 1, and for every other run
cQuantity is increased.
Currently i have implemented this as a stored procedure in the plpgsql
language. This means that in my stored procedure i first do a select to
find out if the row exists or not, then i do a insert or update
depending if the row existed.
Unfortunately, stored procedures seems awfully slow. And i need the
application to go faster.
One solution could be to implement the stored procedure in my program
instead. I think that this will be atleast 50% faster than my stored
procedure, so that would be ok.
However, this has made me thinking. Couldn't this be done directly in
SQL?
Brgds Robert
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To: pgsql-sql@postgresql.org
Cc: tobbe@tripnet.se
Subject: Re: automatic update or insert
In-Reply-To: <1129790184.351579.302550@g47g2000cwa.googlegroups.com>
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