Re: Conditional test
| От | Bruce Momjian |
|---|---|
| Тема | Re: Conditional test |
| Дата | |
| Msg-id | 200201031704.g03H4cR15169@candle.pha.pa.us обсуждение исходный текст |
| Ответ на | Conditional test (rickd@open-works.com (Rick Dayao)) |
| Список | 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@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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