Re: nested query
От | Oliver Elphick |
---|---|
Тема | Re: nested query |
Дата | |
Msg-id | 200101051501.f05F1ZH32112@linda.lfix.co.uk обсуждение исходный текст |
Ответ на | nested query (Mustapha Amrani <ma10024@newton.cam.ac.uk>) |
Список | pgsql-docs |
Mustapha Amrani wrote: >I have two linked tables Table1 and Table2. I have deleted some rows in tabl >e1 >Now I need two delete the rows in table2 that correspond to the rows >deleted in table1. The two table are linked by field id. >I tried the following but with no success: >delete * from table2 where not exists (select * from table1 where >table2.id=id); How about: DELETE FROM table2 WHERE id NOT IN (select id FROM table1); -- Oliver Elphick Oliver.Elphick@lfix.co.uk Isle of Wight http://www.lfix.co.uk/oliver PGP: 1024R/32B8FAA1: 97 EA 1D 47 72 3F 28 47 6B 7E 39 CC 56 E4 C1 47 GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C ======================================== "And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might." Deuteronomy 6:5
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