On 10/28/2011 4:28 PM, Pete wrote:
I have another variation of this issue:
SELECT col1 - col2 as Total, Total * price FROM tst
... gives an error " no such column: Total". I can just repeat "col1 - col2"
of course, but wondering if there is a way to refer to Total within the
SELECT.
This is by design, blessed by SQL-92 standard. The closest you can get
is something like
SELECT Total, Total * price FROM
(select col1 - col2 as Total, price from tst);
This will likely be noticeably slower though.
--
Igor Tandetnik
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