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help / color / mirror / Atom feedFrom: Oliver d'Azevedo Christina <oliveiros.cristina@gmail.com>
To: CrashBandi <crashbandicootu@gmail.com>
Cc: pgsql-sql@postgresql.org <pgsql-sql@postgresql.org>
Subject: Re: Reg: Sql Join
Date: Thu, 31 Jul 2014 00:09:43 +0100
Message-ID: <1D742D88-394D-4B9D-ADF8-D0C832A5B16D@gmail.com> (raw)
In-Reply-To: <CAAvgTTT02zxdRzfcFiq+V-zDQzcOUNrsQGSLNsi2Xc02kuygKg@mail.gmail.com>
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I am not sure if I understand what you're trying to achieve.
It would help if you could provide an output example.
Best,
Oliver
Sent via iPhone, apologies for any errors
Em 30/07/2014, às 11:08 PM, CrashBandi <crashbandicootu@gmail.com> escreveu:
> Hi,
>
> I am having the following question. I am not sure how to approach it. Please help!
>
> table A
> name col1 col2 col3 col4
> apple 100 11111 1 APL
> orange 200 22222 3 ORG
> carrot 300 33333 3 CRT
>
>
> table B
> custom_name value obj_type obj_id
> apple a FR 100
> orange o FR 200
> carrot c VG 300
> apple d FR 11111
> orange e VG 22222
> carrot f UC 33333
> apple h VG 1
> orange o FR 3
> carrot c VG 3
>
> when obj_type ='FR' then join on col1
> When obj_type='VG' then join on col2
> When obj_type='UC' then join on col2
>
> Thanks In advance,
> CB
>
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To: pgsql-sql@postgresql.org
Cc: oliveiros.cristina@gmail.com, crashbandicootu@gmail.com
Subject: Re: Reg: Sql Join
In-Reply-To: <1D742D88-394D-4B9D-ADF8-D0C832A5B16D@gmail.com>
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