drop table dept purge

drop table emp purge

CREATE TABLE DEPT ( 
  DEPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY, 
  DNAME VARCHAR2(14), 
  LOC VARCHAR2(13) 
) 

CREATE TABLE EMP ( 
  EMPNO NUMBER(4) CONSTRAINT PK_EMP PRIMARY KEY, 
  ENAME VARCHAR2(10), 
  JOB VARCHAR2(9), 
  MGR NUMBER(4), 
  HIREDATE DATE, 
  SAL NUMBER(7,2), 
  COMM NUMBER(7,2), 
  DEPTNO NUMBER(2) CONSTRAINT FK_DEPTNO REFERENCES DEPT 
)

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')

INSERT INTO EMP VALUES (7369,'SMITH','CLERK',7902,to_date('17-12-1980','dd-mm-yyyy'),800,NULL,20)

INSERT INTO EMP VALUES (7499,'ALLEN','SALESMAN',7698,to_date('20-2-1981','dd-mm-yyyy'),1600,300,30)

INSERT INTO EMP VALUES (7521,'WARD','SALESMAN',7698,to_date('22-2-1981','dd-mm-yyyy'),1250,500,30)

INSERT INTO EMP VALUES (7566,'JONES','MANAGER',7839,to_date('2-4-1981','dd-mm-yyyy'),2975,NULL,20)

INSERT INTO EMP VALUES (7654,'MARTIN','SALESMAN',7698,to_date('28-9-1981','dd-mm-yyyy'),1250,1400,30)

INSERT INTO EMP VALUES (7698,'BLAKE','MANAGER',7839,to_date('1-5-1981','dd-mm-yyyy'),2850,NULL,30)

INSERT INTO EMP VALUES (7782,'CLARK','MANAGER',7839,to_date('9-6-1981','dd-mm-yyyy'),NULL,NULL,10)

INSERT INTO EMP VALUES (7788,'SCOTT','ANALYST',7566,to_date('13-JUL-87','dd-mm-rr')-85,3000,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('8-9-1981','dd-mm-yyyy'),1500,0,30)

INSERT INTO EMP VALUES (7876,'ADAMS','CLERK',7788,to_date('13-JUL-87', 'dd-mm-rr')-51,1100,NULL,20)

INSERT INTO EMP VALUES (7900,'JAMES','CLERK',7698,to_date('3-12-1981','dd-mm-yyyy'),950,NULL,30)

INSERT INTO EMP VALUES (7902,'FORD','ANALYST',7566,to_date('3-12-1981','dd-mm-yyyy'),3000,NULL,20)

INSERT INTO EMP VALUES (7934,'MILLER','CLERK',7782,to_date('23-1-1982','dd-mm-yyyy'),1300,1000,10)

INSERT INTO EMP VALUES (1234,'STYCK','MANAGER',7839,to_date('9-6-1981','dd-mm-yyyy'),NULL,1300,10)

COMMIT