Re: Query Help

From: Yury Don <yura(at)vpcit(dot)ru>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Query Help
Date: 2000-12-27 17:01:07
Message-ID: 1593069435.20001227220107@vpcit.ru
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Hello Brian,

Wednesday, December 27, 2000, 9:20:53 PM, you wrote:

BCD> What do I have to do a query where information in table1 is not in table2

BCD> I am looking for something like

BCD> Select table1.firstname where table1.firstname is not in table2.firstname
BCD> and table2.date='yesterday'

BCD> I tried
BCD> Select table1.firstname where table1.firstname != table2.firstname and
BCD> table2.date='yesterday'

BCD> and that did not work just listed everyone....

If I understand correctly
Select table1.firstname from table1 where not exists
(select table2.firstname from table2 where table1.firstname = table2.firstname and
table2.date='yesterday')

--
Best regards,
Yury mailto:yura(at)vpcit(dot)ru

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  • Query Help at 2000-12-27 16:20:53 from Brian C. Doyle

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