A.Alter TABLE employee ADD name NOT NULL B.Alter TABLE employee MODIFY name NOT NULL C.Alter TABLE employee Alter name NOT NULL D.Alter TABLE employee Drop name NOT NULL
A.Alter TABLE employee MODIFY name VARCHAR2(25) B.Alter TABLE employee RENAME name VARCHAR2(25) C.Alter employee TABLE MODIFY name VARCHAR2(25) D.Alter employee TABLE MODIFY(name VARCHAR2(25))
A.Drop TABLE B.Alter TABLE C.Delete TABLE D.USE