SQL> select * from emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO -------- ---------- --------- -------- --------- -------- -------- -------- 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 09-DEC-82 3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 12-JAN-83 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782 23-JAN-82 1300 10 1111 MILLER CLERK 7782 23-JAN-82 1200 250 10 2222 FORD ANALYST 7566 03-DEC-81 1100 250 20 16 rows selected. SQL> SELECT * FROM emp e where empno in 2 (select empno from emp d where d.ENAME=e.ENAME minus 3 select empno from emp f 4 where f.ENAME=e.ENAME 5 and rownum=1); EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO -------- ---------- --------- -------- --------- -------- -------- -------- 1111 MILLER CLERK 7782 23-JAN-82 1200 250 10 2222 FORD ANALYST 7566 03-DEC-81 1100 250 20 SQL> spool off