Shulou(Shulou.com)06/01 Report--

Explanation: sometimes we need general experimental data, emp table and dept table, but are there any in the database? At this point, we can create it manually.

Create tables and data

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, NULL, 1980, 'DD-MON-YYYY')

INSERT INTO EMP VALUES (7499, 'ALLEN',' SALESMAN', 7698

TO_DATE ('20 FEBMB 1981, 'DD-MON-YYYY'), 1600, 300,30)

INSERT INTO EMP VALUES (7521, 'WARD',' SALESMAN', 7698

TO_DATE ('22 FEBMB 1981, 'DD-MON-YYYY'), 1250, 500,30)

INSERT INTO EMP VALUES (7566, 'JONES',' MANAGER', 7839

TO_DATE ('2murAPR, 1981,' DD-MON-YYYY'), 2975, NULL, 20)

INSERT INTO EMP VALUES (7654, 'MARTIN',' SALESMAN', 7698

TO_DATE ('28 DD-MON-YYYY' SEP 1981s), 1250, 1400, 30)

INSERT INTO EMP VALUES (7698, 'BLAKE',' MANAGER', 7839

TO_DATE ('1MAYMAYMUR 1981,' DD-MON-YYYY'), 2850, NULL, 30)

INSERT INTO EMP VALUES (7782, 'CLARK',' MANAGER', 7839

TO_DATE ('9murJUNMuR 1981,' DD-MON-YYYY'), 2450, NULL, 10)

INSERT INTO EMP VALUES (7788, 'SCOTT',' ANALYST', 7566

TO_DATE ('09, NULL, 1982, 'DD-MON-YYYY'), 3000, NULL, 20)

INSERT INTO EMP VALUES (7839, 'KING',' PRESIDENT', NULL

TO_DATE ('17 TO_DATE 1981 DD-MON-YYYY'), 5000, NULL, 10)

INSERT INTO EMP VALUES (7844, 'TURNER',' SALESMAN', 7698

TO_DATE ('8murSEP' 1981, 'DD-MON-YYYY'), 1500, 0,30)

INSERT INTO EMP VALUES (7876, 'ADAMS',' CLERK', 7788

TO_DATE ('12Mujanli 1983,' DD-MON-YYYY'), 1100, NULL, 20)

INSERT INTO EMP VALUES (7900, 'JAMES',' CLERK', 7698

TO_DATE ('3Mutual DECMUR 1981,' DD-MON-YYYY'), 950, NULL, 30)

INSERT INTO EMP VALUES (7902, 'FORD',' ANALYST', 7566

TO_DATE ('3murDECMUR 1981,' DD-MON-YYYY'), 3000, NULL, 20)

INSERT INTO EMP VALUES (7934, 'MILLER',' CLERK', 7782

TO_DATE ('23murJANMUR 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')

-- add constraints

Alter table emp add constraint emp_pk primary key (empno)

Alter table dept add constraint dept_pk primary key (deptno)

Alter table dept add constraint emp_fk_dept foreign key (deptno) references dept

Alter table emp add constraint emp_fk_emp foreign key (mgr) references emp

-- View data

(11G) EODA@testdb1 > select * from emp

EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO

--

7369 SMITH CLERK 7902 17-DEC-80 800 20

7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30

7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30

7566 JONES MANAGER 7839 02-APR-81 2975 20

7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30

7698 BLAKE MANAGER 7839 01-MAY-81 2850 30

7782 CLARK MANAGER 7839 09-JUN-81 2450 10

7788 SCOTT ANALYST 7566 09-DEC-82 3000 20

7839 KING PRESIDENT 17-NOV-81 5000 10

7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30

7876 ADAMS CLERK 7788 12-JAN-83 1100 20

7900 JAMES CLERK 7698 03-DEC-81 950 30

7902 FORD ANALYST 7566 03-DEC-81 3000 20

7934 MILLER CLERK 7782 23-JAN-82 1300 10

14 rows selected.

(11G) EODA@testdb1 > select * from dept

DEPTNO DNAME LOC

10 ACCOUNTING NEW YORK

20 RESEARCH DALLAS

30 SALES CHICAGO

40 OPERATIONS BOSTON

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.