From: | "Frank Morton" <fmorton(at)base2inc(dot)com> |
---|---|
To: | <pgsql-sql(at)postgreSQL(dot)org> |
Subject: | Select Maximum Question |
Date: | 1999-08-12 15:51:33 |
Message-ID: | 00ef01bee4da$8d704060$8355e5ce@base2inc.com |
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Thread: | |
Lists: | pgsql-sql |
I am a SQL newbie, so hang in there with me.
I have two fields in a table, "filename" and "revision".
The table contains 3 rows where the filename is the same and
revision contains "1" "2" and "3" in each respective row.
It also contains another row for a different filename with
revision set to "1".
I want to do a select which only returns the highest revision
level for each filename, so the select will return two rows,
the first filename with revision = "3" and the second filename
with revision set to "1".
How do I do this? I imagine this is simple, but it is new to me.
Thanks.
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