Some stored procedures return output parameters in addition to the result set rows. The SQL transformation returns output parameters in the last row. It does not include the single-occurring output parameters in the result set rows.
For example, you write a stored procedure that receives an employee ID and returns the employee name in output parameter 1 and department in output parameter 2. The stored procedure also returns a row for each sick day that the employee took throughout the year. The row contains the date, the number of hours, and the reason for the absence.
The result set contains a different number of rows for each employee. Each row in the result set contains an empty employee name and department. The SQL transformation returns the employee name and department after the result set. The employee name and department appear in the last row.