| ERROR | Number of values in aggregate and in subquery dont 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. |