Re: help on SQL
От | Gergely Czuczy |
---|---|
Тема | Re: help on SQL |
Дата | |
Msg-id | Pine.LNX.4.44.0404210907250.28604-100000@localhost обсуждение исходный текст |
Ответ на | help on SQL (Kenneth Suralta <ksuralta@ntsp.nec.co.jp>) |
Ответы |
Re: help on SQL
|
Список | pgsql-interfaces |
On Wed, 21 Apr 2004, Kenneth Suralta wrote: > > hello everyone, > > is it possible to get every other row in the table? > like for example: > data > ----- > 1 > 2 > 3 > 4 > 5 > 6 > 7 SELECT t.fields FROM table t WHERE data NOT IN (SELECT t2.data FROM tablet2 WHERE some_whereclause); it will select these rows which ones are not in the subquery. but you can do it simply by getting the negate of the whereclause... > > Is it possible to have this result (interval of 3)? > > result > ------ > 1 > 4 > 7 i don't see what you mean. please describe it. > > thanks, > kenneth > > -- > > > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Don't 'kill -9' the postmaster > Bye, Gergely Czuczy mailto: phoemix@harmless.hu PGP: http://phoemix.harmless.hu/phoemix.pgp "Wish a god, a star, to believe in, With the realm of king of fantasy..."
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