오라클 조인 삭제
DELETE FROM EMP A WHERE EXISTS ( SELECT 1 FROM DEPT B WHERE A.DEPTNO = B.DEPTNO AND B.DEPTNO = '20' ); DELETE FROM EMP A WHERE A.DEPTNO = ( SELECT B.DEPTNO FROM DEPT B WHERE A.DEPTNO = B.DEPTNO AND B.DEPTNO = '20' ); DELETE FROM EMP A WHERE (A.DEPTNO, A.ENAME) = ( SELECT B.DEPTNO, B.NAME FROM DEPT B WHERE B.DEPTNO = '20' );
Database/Oracle
2021. 3. 10. 16:43
