| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Rick Dayao <rickd(at)open-works(dot)com> |
| Cc: | pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Conditional test |
| Date: | 2002-01-03 17:04:38 |
| Message-ID: | 200201031704.g03H4cR15169@candle.pha.pa.us |
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| Lists: | pgsql-sql |
Rick Dayao wrote:
> I am trying to solve this problem:
>
> If a table exists, drop the table, otherwise continue processing.
>
> For example, if table X exists, then drop table X. How would I do
> this in SQL? I can query the pg_tables table to see which tables
> exist, but I'm looking for an If-Else construct in SQL.
You can drop the table and ignore the error if returned. We will have
CREATE OR REPLACE in 7.2, but no conditional DROP.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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