The following example shows how the GROUP BY clause operates on PERIOD value expressions, where period_of_stay is the PERIOD value expression.
SELECT emp_no, period_of_stay FROM employee GROUP BY emp_no, period_of_stay;
The following example shows how the GROUP BY clause operates on PERIOD value expressions, where period_of_stay is the PERIOD value expression.
SELECT emp_no, period_of_stay FROM employee GROUP BY emp_no, period_of_stay;