SELECT COUNT(*) FROM TBL_EMPLOYEE;

ALTER TABLE TBL_EMPLOYEE ADD COLUMN EMP_REGION VARCHAR(20);

INSERT INTO TBL_EMPLOYEE(EMP_ID, EMP_NAME, EMP_SALARY, DEPT) VALUES(1, 'Adam', 20000, 'Finance’);

CREATE OR REPLACE TABLE TBL_EMPLOYEE

(

EMP_ID NUMBER,

EMP_NAME VARCHAR(30),

EMP_SALARY NUMBER,

DEPT VARCHAR(20)

);