From: | "Christian Kindler" <christian(dot)kindler(at)gmx(dot)net> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Count of rows |
Date: | 2007-08-03 07:20:45 |
Message-ID: | 20070803072045.152170@gmx.net |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
do this via execute in a stored procedure - something like this (written on the flow - untested!)
returns setof text
declare
my_record record;
my counter as bigint;
begin
for my_record in
select tablename from pg_tables where
schemaname = 'public'
loop
execute into counter
'select count(*) from ' || my_record.tablename ;
return next my_record.tablename || ': ' || counter::text;
end loop;
return null;
end;
On Fri, August 3, 2007 7:35 am, Paul Lambert wrote:
> What's the best way to count how many rows are in each table via SQL? Or
> is it even possible?
>
> I'm trying something like:
>
> select tablename, count(*) from (select tablename from pg_tables where
> schemaname = 'public') as test group by tablename;
>
> But obviously this just gives a count of 1 for each table in the public
> schema.
>
> Can it be done or would I have to write a function?
>
> --
> Paul Lambert
> Database Administrator
> AutoLedgers
>
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