Re: Query Problem
От | Josh Berkus |
---|---|
Тема | Re: Query Problem |
Дата | |
Msg-id | 39F86FFA.A1499290@agliodbs.com обсуждение исходный текст |
Ответ на | Query Problem (Josh Berkus <josh@agliodbs.com>) |
Список | pgsql-sql |
Michael, > SELECT Data > FROM Table A > WHERE NOT EXISTS ( > SELECT * FROM Table_B, Table_C > WHERE Table_B.GroupID = TableC.GroupID > AND TableC.AccountID = 11 > ) > > I think that the not exists is a bit quicker than the NOT IN. Give it > a whirl. A *lot* faster. Like, 7x as fast. I'd forgotten about EXISTS, since I so seldom have a use for it ... but this is shy it was created, I guess. Thanks so much for your help! -Josh Berkus -- ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete informationtechnology josh@agliodbs.com and data management solutions (415) 436-9166 for law firms, small businesses fax 436-0137 and non-profit organizations. pager 338-4078 San Francisco
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