Re: help on SQL
| От | Kenneth Suralta |
|---|---|
| Тема | Re: help on SQL |
| Дата | |
| Msg-id | 408627AF.2020204@hq.ntsp.nec.co.jp обсуждение |
| Ответ на | Re: help on SQL (Gergely Czuczy <phoemix@harmless.hu>) |
| Ответы |
Re: help on SQL
Re: help on SQL |
| Список | pgsql-interfaces |
hi gergely,
thanks for replying..
what i mean is supposing there is a table with the following rows:
Gergely Czuczy wrote:
thanks for replying..
what i mean is supposing there is a table with the following rows:
data ----- 1 2 3 4 5 6 7 is it possible to get every other N-row in the table? example, if N is 3. data ----- 1 4 7 thanks, kenneth
Gergely Czuczy wrote:
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 7SELECT 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 7i don't see what you mean. please describe it.thanks, kenneth -- ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmasterBye, 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..." ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
--

В списке pgsql-interfaces по дате отправления: