Re: EXCEPT Queries - Mailing list pgsql-sql

From Josh Berkus
Subject Re: EXCEPT Queries
Date
Msg-id 200302192245.15808.josh@agliodbs.com
Whole thread Raw
In response to EXCEPT Queries  (Mark Mitchell <mark@lapcrew.com>)
List pgsql-sql
Mark,

> SELECT
> "A"."SUBSCRIBER_NAME" , "A"."ACCOUNT_NUMBER"
> FROM "A"
> WHERE
> "A"."ACCOUNT_NUMBER"
> NOT IN
> (
>   SELECT
>   "B"."ACCOUNT_NUMBER"
>   FROM "B"
> )

Use "WHERE NOT EXISTS" instead.   See the documentation on SELECT for how to
write this clause.

--
Josh Berkus
Aglio Database Solutions
San Francisco


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