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Use a common table expression (CTE)...
With tmpfile as (
SELECT
polog.poendt as day_entered,
ech.hedte as day_ordered
FROM xyzlib/pologpf AS polog
JOIN xyzlib/ech AS ech
ON polog.pokord = ech.hord
)
Select * from tmpfile
where day_entered > day_ordered
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Gqcy
Sent: Monday, November 08, 2010 11:02 AM
To: midrange-l@xxxxxxxxxxxx
Subject: SQL question - why doesn't WHERE clause know about renamed fields?
SELECT
polog.poendt as day_entered,
ech.hedte as day_ordered
FROM xyzlib/pologpf AS polog
JOIN xyzlib/ech AS ech
ON polog.pokord = ech.hord
where day_entered > day_ordered
Column DAY_ENTERED not in specified tables.
Is this just part of SQL, or am I missing something???
These are dates, and I have created a UDF to convert numeric
to Date(not shown in above example), but I can't use the renamed fields...
thanks
Gerald
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