Hey folks,
I am trying to run the following sql query in mysql:
SELECT TD.project_id, P.project_manager FROM time_daily TD INNER JOIN projects P ON P.project_id = TD.time_project_id WHERE TD.time_user_id = 'xpt' AND ( SUM( TD.time_hours_worked ) <> '0.00' )
And I keep getting the #1111 errno.....- Invalid use of group function -
I don't want to pull out any rows where the SUM of time_hours_worked is '0.00'...
I would be most grateful if anyone has any suggestions....
You cannot use aggregate functions like SUM() in the WHERE clause. That's self-contradictory, because WHERE determines which rows to select, whereas SUM() can be computed only after the rows have been selected. :-)
You might want to select the SUM() values into a temporary table, then use that in a join with your original table.
Many thanks!
Cory -- Cory Hicks <[EMAIL PROTECTED]> TRI International
-- Paul DuBois, Senior Technical Writer Madison, Wisconsin, USA MySQL AB, www.mysql.com
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