PLS-00411: Number of values in aggregate and in subquery don't match
Cause: In a statement of the form aggregate = subquery, the numbers of values in the aggregate and subquery are unequal. For example, the code might look like: ... WHERE (10,20,30) = (SELECT empno,deptno FROM emp WHERE...);
Action: Revise the aggregate or subquery so that the numbers of values match.