User ran a query on his Oracle source and another query on his SQL Server cube data. Both results return EmployeeNumber and WorkHours. Next, he right click on his source data result, select "Compare to" and then select "Editor cube.sql > set 1" but it returns the message "No common columns, can't compare grids".
User can only compare to a Toad Editor File (.tef) when he uses that option. He should save either query to a .tef file and use that for comparison. Otherwise he should consider using the Data Compare in Tools | Compare | Data Compare and Sync.