alias name in sql for columns

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hi friend

why is this query wrong??

SQL

SELECT [Code],sum([Value]) as COL
  FROM [Stuff] where COL=250 GROUP BY [Code]

please guide me

Posted 19-Sep-11 6:34am

2 solutions

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Chris Meech · Answer 1 · 2011-09-19T06:48:00

You can not be using an alias as an element in the where clause. Possibly you may do the following

Select code, sum(value) as col
  from table
 having sum(value) = 250
 group by code

Posted 19-Sep-11 6:48am

Kumar_Jitendra · Answer 2 · 2011-09-19T06:49:00

Column naming action perform after filtering the record. So when process try to execute COL=25 filter, it do not find any column with the name COL.

Posted 19-Sep-11 6:49am