Dropping a Column

The following ALTER TABLE statement drops the emp.ename:


CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
                  ENAME VARCHAR2(10),
                  JOB VARCHAR2(9),
                  SAL NUMBER(7, 2),
                  HIREDATE DATE,
                  DEPTNO NUMBER(2));


ALTER TABLE emp
DROP COLUMN ename;

desc emp
Home »
Oracle »
Table » 

Column:
  1. Adding a Column
  2. Adding a Virtual Column
  3. Changing the Size of a Column
  4. Changing the Precision of a Numeric Column
  5. Changing the Data Type of a Column
  6. Changing the Default Value of a Column
  7. Dropping a Column
Related: