insert into DEPT (DEPTNO, DNAME, LOC)
values ('20', 'RESEARCH', 'DALLAS');
insert into DEPT (DEPTNO, DNAME, LOC)
values ('30', 'SALES', 'CHICAGO');
insert into DEPT (DEPTNO, DNAME, LOC)
values ('40', 'OPERATIONS', 'BOSTON');
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7369', 'SMITH', 'CLERK', '7902', '1980-12-17', 800, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7499', 'ALLEN', 'SALESMAN', '7698', '1981-02-20', 1600, 300, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7521', 'WARD', 'SALESMAN', '7698', '1981-02-22', 1250, 500, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7566', 'JONES', 'MANAGER', '7839', '1981-04-02', 2975, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7654', 'MARTIN', 'SALESMAN', '7698', '1981-09-28', 1250, 1400, 30
);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7698', 'BLAKE', 'MANAGER', '7839', '1981-05-01', 2850, null, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7782', 'CLARK', 'MANAGER', '7839', '1981-06-09', 2450, null, 10);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7788', 'SCOTT', 'ANALYST', '7566', '1987-04-19', 3000, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7839', 'KING', 'PRESIDENT', null, '1981-11-17', 5000, null, 10);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7844', 'TURNER', 'SALESMAN', '7698', '1981-09-08', 1500, 0, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7876', 'ADAMS', 'CLERK', '7788', '1987-05-23', 1100, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7900', 'JAMES', 'CLERK', '7698', '1981-12-03', 950, null, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7902', 'FORD', 'ANALYST', '7566', '1981-12-03', 3000, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values ('7934', 'MILLER', 'CLERK', '7782', '1982-01-23', 1300, null, 10);
insert into SALGRADE (GRADE, LOSAL, HISAL)
values ('1', 700, 1200);
