Cannot perform this operation on a closed dataset

Question

I am just trying to execute the \"select\" sql statement using TADOQuery component, but when TADOQuery\'s \"Open\" statement is executing I am getting following error:

Answer 1

Your code looks fine.

Check if there are any event handlers (OnBeforeOpen) or master/detail datasources attached to the query. In this case a different dataset, which is still closed, could cause the error.