Re: simple yet complex join
От | Vincent Stoessel |
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Тема | Re: simple yet complex join |
Дата | |
Msg-id | 3CE512E6.2000308@xaymaca.com обсуждение исходный текст |
Ответ на | Re: simple yet complex join (Jeff Eckermann <jeff_eckermann@yahoo.com>) |
Ответы |
Re: simple yet complex join
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Список | pgsql-general |
Hmmm, thanks for the pointer. I think I'm going to take the easier road and program my way through the problem with some perl iterations. Thanks all! Jeff Eckermann wrote: > I think what you are looking for is a "pivot table"? > This is not easy using SQL, but workarounds have been > discussed several times in the past. I suggest you > search the archives for "pivot table", and you will > find plenty of references. > > --- Vincent Stoessel <vincent@xaymaca.com> wrote: > >>Hello All, >>I've been reading the archives, the manual and my >>sql books. >>lack of sleep is making what seems easy very hard to >>figure out >>right now. >> >>what kind of join do I have to do in order to >>combine 3 tables of >>similiar information. For example 3 months' worth of >>payments from >>customers: >> >> >>jan_pay >> >> >>tom 25 >>ron 30 >>jim 0 >> >> >>feb_pay >> >>tom 25 >>ron 20 >>jim 10 >> >> >>march_pay >> >>tom 25 >>ron 30 >>jim 5 >>pat 40 >> >> >> >>I want a result that looks like this : >> >> >>tom 25 25 25 >>ron 30 20 30 >>jim 0 10 5 >>pat 0 0 40 >> >> >> >>I've tried so many kinds of strage joins that I am >>ashamed to post them >>here. Can someone please light the candle? >>Thanks in advance. >> >> >>-- >>Vincent Stoessel >>Linux Systems Developer >>vincent xaymaca.com >> >> >>---------------------------(end of >>broadcast)--------------------------- >>TIP 4: Don't 'kill -9' the postmaster > > > > __________________________________________________ > Do You Yahoo!? > LAUNCH - Your Yahoo! Music Experience > http://launch.yahoo.com -- Vincent Stoessel Linux Systems Developer vincent xaymaca.com
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