Re: Destroying all exisitng tables in database

On Wed, Apr 13, 2005 at 04:20:40PM +0100, Lim, Terrin wrote:
> I'm trying to drop all tables in a database but I can't use DROP dbname
> as I don't have permission rights to do so. I also can't manually delete
> all the tables cause there are about 200 tables. How do i go about this?
> Thanks.

Here is a little PL/pgSQL sniplet, I used to delete all tables from
schema public:

----- snip-snap -----

CREATE OR REPLACE FUNCTION dropit() RETURNS integer AS'
DECLARE
    numberoftables integer := 0;
    tabletodrop RECORD;
BEGIN
    FOR tabletodrop IN SELECT tablename from pg_tables where
schemaname=''public'' LOOP
        numberoftables := numberoftables + 1;
        RAISE NOTICE ''Droping table %'', tabletodrop.tablename;
        EXECUTE ''DROP TABLE public.''
            || tabletodrop.tablename;
    END LOOP;
    RETURN numberoftables;
END;
' LANGUAGE plpgsql;

----- snip-snap -----

You execute it by "select dropit();" on the psql commandline.

But be warned, it will drop _all_ tables in the used schema.

cu,

Hans Peter

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