“Ambiguous column name” error on one particular server

Question

This simple query throws the \"Ambiguous column name TaskID\" error on one db-server only. This is ridiculous. We tested this with the same database structu

Answer 1

Wow. The problem was with the database compatibility mode. It was set to "80" (sql 2000). I've set it to 90 and the query works fine now.

More info on compatibility levels can be found here: http://msdn.microsoft.com/en-US/library/ms178653(SQL.90).aspx