DROP TABLE EMP       cascade constraints;
DROP TABLE DEPT      cascade constraints;
DROP TABLE SALGRADE  cascade constraints;
purge recyclebin;

CREATE TABLE EMP
       (EMPNO     NUMBER(4) ,
        ENAME     VARCHAR2(10),
        JOB       VARCHAR2(9),
        MGR       NUMBER(4),
        HIREDATE  DATE,
        SAL       NUMBER(7, 2),
        COMM      NUMBER(7, 2),
        DEPTNO    NUMBER(2));

INSERT INTO EMP VALUES(7369, 'SMITH',  'CLERK',     7902, TO_DATE('17-11-1980', 'DD-MM-YYYY'),  800, NULL, 20);
INSERT INTO EMP VALUES(7499, 'ALLEN',  'SALESMAN',  7698, TO_DATE('20-02-1981', 'DD-MM-YYYY'), 1600,  300, 30);
INSERT INTO EMP VALUES(7521, 'WARD',   'SALESMAN',  7698, TO_DATE('22-02-1981', 'DD-MM-YYYY'), 1250,  500, 30);
INSERT INTO EMP VALUES(7566, 'JONES',  'MANAGER',   7839, TO_DATE('02-04-1981', 'DD-MM-YYYY'), 2975, NULL, 20);
INSERT INTO EMP VALUES(7654, 'MARTIN', 'SALESMAN',  7698, TO_DATE('28-09-1981', 'DD-MM-YYYY'), 1250, 1400, 30);
INSERT INTO EMP VALUES(7698, 'BLAKE',  'MANAGER',   7839, TO_DATE('01-05-1981', 'DD-MM-YYYY'), 2850, NULL, 30);
INSERT INTO EMP VALUES(7782, 'CLARK',  'MANAGER',   7839, TO_DATE('09-06-1981', 'DD-MM-YYYY'), 2450, NULL, 10);
INSERT INTO EMP VALUES(7788, 'SCOTT',  'ANALYST',   7566, TO_DATE('09-12-1982', 'DD-MM-YYYY'), 3000, NULL, 20);
INSERT INTO EMP VALUES(7839, 'KING',   'PRESIDENT', NULL, TO_DATE('17-11-1981', 'DD-MM-YYYY'), 5000, NULL, 10);
INSERT INTO EMP VALUES(7844, 'TURNER', 'SALESMAN',  7698, TO_DATE('08-09-1981', 'DD-MM-YYYY'), 1500,    0, 30);
INSERT INTO EMP VALUES(7876, 'ADAMS',  'CLERK',     7788, TO_DATE('12-01-1983', 'DD-MM-YYYY'), 1100, NULL, 20);
INSERT INTO EMP VALUES(7900, 'JAMES',  'CLERK',     7698, TO_DATE('03-12-1981', 'DD-MM-YYYY'),  950, NULL, 30);
INSERT INTO EMP VALUES(7902, 'FORD',   'ANALYST',   7566, TO_DATE('03-12-1981', 'DD-MM-YYYY'), 3000, NULL, 20);
INSERT INTO EMP VALUES(7934, 'MILLER', 'CLERK',     7782, TO_DATE('23-01-1982', 'DD-MM-YYYY'), 1300, NULL, 10);

CREATE TABLE DEPT
       (DEPTNO   NUMBER(2),
        DNAME    VARCHAR2(14),
        LOC      VARCHAR2(13) );

INSERT INTO DEPT VALUES (10, 'ACCOUNTING', 'NEW YORK');
INSERT INTO DEPT VALUES (20, 'RESEARCH',   'DALLAS');
INSERT INTO DEPT VALUES (30, 'SALES',      'CHICAGO');
INSERT INTO DEPT VALUES (40, 'OPERATIONS', 'BOSTON');

CREATE TABLE SALGRADE
        (GRADE   NUMBER,
         LOSAL   NUMBER,
         HISAL   NUMBER);

INSERT INTO SALGRADE VALUES (1,  700, 1200);
INSERT INTO SALGRADE VALUES (2, 1201, 1400);
INSERT INTO SALGRADE VALUES (3, 1401, 2000);
INSERT INTO SALGRADE VALUES (4, 2001, 3000);
INSERT INTO SALGRADE VALUES (5, 3001, 9999);

COMMIT;