From: | pgsql-sql(at)fc(dot)emc(dot)com(dot)ph (pgsql-sql) |
---|---|
To: | pgsql-sql(at)postgresql(dot)org, reedstrm(at)rice(dot)edu |
Subject: | Re(2): optimize sql |
Date: | 2000-07-27 02:40:04 |
Message-ID: | fc.000f56720059cb84000f56720059cb84.59cc50@fc.emc.com.ph |
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Lists: | pgsql-sql |
reedstrm(at)rice(dot)edu writes:
>How does the output of the above differ from:
>
>SELECT name FROM office, office_application
>WHERE code = office_code
>AND active != 't';
>
>Without knowing the table structures (which tables to active, code,
>and office_code belong to?) it's hard to suggest much else.
>
>Ross
The name and code fields belong to office table. While
office_code and active fields belong to office_application table.
The name field have duplicates and among the duplicates,
only one active field is TRUE. I just wanted to get name field
that has no TRUE active field. Any other idea? Thanks.
sherwin
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