Update multiple columns with single update statement..

Question

HI all,
i am reading the columns value from different table but i want to update it with signle update statement..
such as how to update multiple columns (50 columns) of table with single update statement .. is there any sql statement available i know it how to do with pl/sql..

Answer 1

As I understood, may be this. Here i am updating ename,sal, comm columns all at once.
SQL> select * from emp where empno=7369;
     EMPNO ENAME      JOB              MGR HIREDATE                   SAL       COMM     DEPTNO
      7369 SMITH      CLERK           7902 17/12/1980 12:00:00        800                    20
SQL> UPDATE emp
  2     SET ename = lower (ename),
  3         sal = sal + 1000,
  4         comm = 100
  5   WHERE empno = 7369;
1 row updated.
SQL> select * from emp where empno=7369;
     EMPNO ENAME      JOB              MGR HIREDATE                   SAL       COMM     DEPTNO
      7369 smith      CLERK           7902 17/12/1980 12:00:00       1800        100         20
SQL> UPDATE emp
  2     SET ename = (SELECT 'ABCD' FROM DUAL),
  3         sal = (SELECT 1000 FROM DUAL),
  4         comm = (SELECT 100 FROM DUAL)
  5   WHERE empno = 7369;
1 row updated.