数据库练习经典表‘dept’+‘emp’的sql语句

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数据库练习经典表‘dept’+‘emp’的sql语句

 1 create table emp (
 2     empno numeric(4) not null,
 3     ename varchar(10),
 4     job varchar(9),
 5     mgr numeric(4),
 6     hiredate datetime,
 7     sal numeric(7, 2),
 8     comm numeric(7, 2),
 9     deptno numeric(2)
10 );
11 
12 insert into emp values (7369, SMITH, CLERK, 7902, 1980-12-17, 800, null, 20);
13 insert into emp values (7499, ALLEN, SALESMAN, 7698, 1981-02-20, 1600, 300, 30);
14 insert into emp values (7521, WARD, SALESMAN, 7698, 1981-02-22, 1250, 500, 30);
15 insert into emp values (7566, JONES, MANAGER, 7839, 1981-04-02, 2975, null, 20);
16 insert into emp values (7654, MARTIN, SALESMAN, 7698, 1981-09-28, 1250, 1400, 30);
17 insert into emp values (7698, BLAKE, MANAGER, 7839, 1981-05-01, 2850, null, 30);
18 insert into emp values (7782, CLARK, MANAGER, 7839, 1981-06-09, 2450, null, 10);
19 insert into emp values (7788, SCOTT, ANALYST, 7566, 1982-12-09, 3000, null, 20);
20 insert into emp values (7839, KING, PRESIDENT, null, 1981-11-17, 5000, null, 10);
21 insert into emp values (7844, TURNER, SALESMAN, 7698, 1981-09-08, 1500, 0, 30);
22 insert into emp values (7876, ADAMS, CLERK, 7788, 1983-01-12, 1100, null, 20);
23 insert into emp values (7900, JAMES, CLERK, 7698, 1981-12-03, 950, null, 30);
24 insert into emp values (7902, FORD, ANALYST, 7566, 1981-12-03, 3000, null, 20);
25 insert into emp values (7934, MILLER, CLERK, 7782, 1982-01-23, 1300, null, 10);
26 
27 create table dept (
28     deptno numeric(2),
29     dname varchar(14),
30     loc varchar(13)
31 );
32 
33 insert into dept values (10, ACCOUNTING, NEW YORK);
34 insert into dept values (20, RESEARCH, DALLAS);
35 insert into dept values (30, SALES, CHICAGO);
36 insert into dept values (40, OPERATIONS, BOSTON);
37 
38 create table bonus (
39     empno numeric(4),
40     job varchar(9),
41     sal numeric,
42     comm numeric
43 );
44 
45 create table salgrade (
46     grade numeric,
47     losal numeric,
48     hisal numeric
49 );
50 
51 insert into salgrade values (1, 700, 1200);
52 insert into salgrade values (2, 1201, 1400);
53 insert into salgrade values (3, 1401, 2000);
54 insert into salgrade values (4, 2001, 3000);
55 insert into salgrade values (5, 3001, 9999);

 

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