Hi Julianne, HAVING should make sure on the database (SQL) level. I am sure it works for MySQL. Regards Richard Gathogo. *Love covers a multitude of sins.* On Tue, May 15, 2012 at 1:17 PM, Rad! <conradakunga@gmail.com> wrote:
Try WHERE C-D < 0
Not all databases (like Sybase) allow you to alias an expression and use it later as a reference
On Tuesday, May 15, 2012, julianne anyim wrote:
Hello people,
I have a query in the form;
SELECT A, B, (C-D) AS E ...
I need to return only values where E<0 for instance. I know i can achieve this in php, but is there a way i can achieve it at the SQL level?
I have tried:
SELECT A, B, (C-D) AS E WHERE E<0
but i get an "ORA-00904: : invalid identifier" error. E is not recognized.
Any insights?
Thank you Julianne
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