create user scott identified by tiger default tablespace users temporary tablespace temp quota unlimited on users;

SET TERMOUT ON
PROMPT Building demonstration tables. Please wait.
SET TERMOUT OFF
DROP TABLE EMP;
DROP TABLE DEPT;
DROP TABLE BONUS;
DROP TABLE SALGRADE;
DROP TABLE DUMMY;

CREATE TABLE EMP(EMPNO NUMBER(4) NOT NULL,
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-DEC-1980', 'DD-MON-YYYY'), 800, NULL, 20);

INSERT INTO EMP VALUES(7499, 'ALLEN', 'SALESMAN', 7698,
   TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30);

INSERT INTO EMP VALUES(7521, 'WARD', 'SALESMAN', 7698,
   TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);

INSERT INTO EMP VALUES(7566, 'JONES', 'MANAGER', 7839,
   TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20);

INSERT INTO EMP VALUES(7654, 'MARTIN', 'SALESMAN', 7698,
   TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30);

INSERT INTO EMP VALUES(7698, 'BLAKE', 'MANAGER', 7839,
   TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

INSERT INTO EMP VALUES(7782, 'CLARK', 'MANAGER', 7839,
   TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

INSERT INTO EMP VALUES(7788, 'SCOTT', 'ANALYST', 7566,
   TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

INSERT INTO EMP VALUES(7839, 'KING', 'PRESIDENT', NULL,
   TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

INSERT INTO EMP VALUES(7844, 'TURNER', 'SALESMAN', 7698,
   TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30);

INSERT INTO EMP VALUES(7876, 'ADAMS', 'CLERK', 7788,
   TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20);

INSERT INTO EMP VALUES(7900, 'JAMES', 'CLERK', 7698,
   TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30);

INSERT INTO EMP VALUES(7902, 'FORD', 'ANALYST', 7566,
   TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

INSERT INTO EMP VALUES(7934, 'MILLER', 'CLERK', 7782,
   TO_DATE('23-JAN-1982', 'DD-MON-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 BONUS(ENAME VARCHAR2(10),JOB VARCHAR2(9),
SAL NUMBER,COMM NUMBER);

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);

CREATE TABLE DUMMY(DUMMY NUMBER);

INSERT INTO DUMMY VALUES (0);

COMMIT;

SET TERMOUT ON

alter table emp add constraint emp_pk primary key(empno);

alter table dept add constraint dept_pk primary key (deptno);

alter table emp add constraint emp_fk_dept foreign key(deptno) references dept;

alter table emp add constraint emp_fk_emp foreign key(mgr) references emp;