From: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Finding missing records |
Date: | 2006-01-27 14:03:42 |
Message-ID: | 20060127140342.GA8465@webserv.wug-glas.de |
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Lists: | pgsql-general |
am 27.01.2006, um 14:59:47 +0100 mailte Stefano B. folgendes:
> How can I find the difference between the two tables?
> table1 has 10000 records
> table2 has 9900 records (these records are in table1 as well)
>
> I'd like to find 100 missing records.
> I have try this query
>
> select f1,f2,f3,f4 from table1 where (f1,f2,f3,f4) NOT IN (select f1,f2,f3,f4 from table2)
select f1,f2,f3,f4 from table1 except select f1,f2,f3,f4 from table2;
HTH, Andreas
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Andreas Kretschmer (Kontakt: siehe Header)
Heynitz: 035242/47215, D1: 0160/7141639
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