0-创建scott数据

CREATE TABLE dept

(

 deptno INT PRIMARY KEY,

 dname VARCHAR(14),

 loc VARCHAR(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 emp

(

 EMPNO INT(4) PRIMARY KEY,

 ENAME VARCHAR(10),

 JOB VARCHAR(9),

 MGR INT(4),

 HIREDATE DATE,

 SAL DOUBLE,

 COMM DOUBLE,

 deptno INT,

FOREIGN KEY (deptno) REFERENCES dept(deptno));

 

INSERT INTO emp VALUES
(7369,'SMITH','CLERK',7902,DATE('1980-12-17'),800,NULL,20);
INSERT INTO emp VALUES
(7499,'ALLEN','SALESMAN',7698,DATE('1981-2-20'),1600,300,30);
INSERT INTO emp VALUES
(7521,'WARD','SALESMAN',7698,DATE('1981-2-22'),1250,500,30);
INSERT INTO emp VALUES
(7566,'JONES','MANAGER',7839,DATE('1981-4-2'),2975,NULL,20);
INSERT INTO emp VALUES
(7654,'MARTIN','SALESMAN',7698,DATE('1981-9-28'),1250,1400,30);
INSERT INTO emp VALUES
(7698,'BLAKE','MANAGER',7839,DATE('1981-5-1'),2850,NULL,30);
INSERT INTO emp VALUES
(7782,'CLARK','MANAGER',7839,DATE('1981-6-9'),2450,NULL,10);
INSERT INTO emp VALUES
(7788,'SCOTT','ANALYST',7566,DATE('1987-4-19'),3000,NULL,20);
INSERT INTO emp VALUES
(7839,'KING','PRESIDENT',NULL,DATE('1981-11-17'),5000,NULL,10);
INSERT INTO emp VALUES
(7844,'TURNER','SALESMAN',7698,DATE('1981-9-8'),1500,0,30);
INSERT INTO emp VALUES
(7876,'ADAMS','CLERK',7788,DATE('1987-5-23'),1100,NULL,20);
INSERT INTO emp VALUES
(7900,'JAMES','CLERK',7698,DATE('1981-12-3'),950,NULL,30);
INSERT INTO emp VALUES
(7902,'FORD','ANALYST',7566,DATE('1981-12-3'),3000,NULL,20);
INSERT INTO emp VALUES
(7934,'MILLER','CLERK',7782,DATE('1982-1-23'),1300,NULL,10);

 

CREATE TABLE  salgrade

(

 grade INT PRIMARY KEY,

 losal INT,

 hisal INT);

 

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);