Code:
SQL> SELECT * from depT;
DEPTID EMPID CLASSID ENROLLEDO GRADE
---------- ---------- ---------- --------- ----------
1 1 1 23-SEP-02 62
2 1 2 30-SEP-02 70
3 2 3 23-SEP-03 51
4 2 5 23-SEP-03 41
5 2 6 23-SEP-03 68
6 3 4 30-SEP-02 78
7 3 7 30-SEP-02 80
8 4 8 20-SEP-02 70
8 rows selected.Code:
SQL> SELECT * from empexam;
EMPID EXAMID MARK TAKEN COMMENTS
---------- ---------- ---------- ---------- -------------
1 1 55 1 Satisfactory
1 2 73 1 Good result
2 3 44 1 Hard
2 5 39 0 Simple
2 6 63 1Code:
SQL> SELECT empID, Grade FROM dept e
2 WHERE Grade > ALL (
3 SELECT Mark FROM empExam s
4 WHERE s.empID = e.empID);