走进MySQL—分享dept、emp、bonus、salgrade员工信息管理表

Java光头强 • 2023年2月20日上午9:09 • 后端笔记 • 阅读 92

今天给大家分享一个我们在学习数据库的过程中非常有用的员工信息表（其中包含dept、emp、bonus、salgrade及数据），很多初学者都会利用此表来学习数据库。过两天给大家分享如果利用这些表来学习SQL语句！！

正文

1.dept表

CREATE TABLE `dept`(
    `deptno` INT(2) NOT NULL, 
    `dname` VARCHAR(14),
    `loc` VARCHAR(13),
    CONSTRAINT pk_dept PRIMARY KEY(deptno)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

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');

2.emp表

CREATE TABLE `emp` (
    `empno` int(4) NOT NULL PRIMARY KEY,
    `ename` VARCHAR(10),  
    `job` VARCHAR(9),  
    `mgr` int(4),  
    `hiredate` DATE,  
    `sal` float(7,2),  
    `comm` float(7,2),  
    `deptno` int(2),
    CONSTRAINT fk_deptno FOREIGN KEY(deptno) REFERENCES dept(deptno)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO EMP VALUES (7369,'SMITH','CLERK',7902,'1980-12-17',800,NULL,20); 
INSERT INTO EMP VALUES (7499,'ALLEN','SALESMAN',7698,'1981-02-20',1600,300,30);
INSERT INTO EMP VALUES (7521,'WARD','SALESMAN',7698,'1981-02-22',1250,500,30); 
INSERT INTO EMP VALUES (7566,'JONES','MANAGER',7839,'1981-04-02',2975,NULL,20); 
INSERT INTO EMP VALUES (7654,'MARTIN','SALESMAN',7698,'1981-09-28',1250,1400,30); 
INSERT INTO EMP VALUES (7698,'BLAKE','MANAGER',7839,'1981-05-01',2850,NULL,30); 
INSERT INTO EMP VALUES (7782,'CLARK','MANAGER',7839,'1981-06-09',2450,NULL,10); 
INSERT INTO EMP VALUES (7788,'SCOTT','ANALYST',7566,'1987-07-13',3000,NULL,20); 
INSERT INTO EMP VALUES (7839,'KING','PRESIDENT',NULL,'1981-11-07',5000,NULL,10); 
INSERT INTO EMP VALUES (7844,'TURNER','SALESMAN',7698,'1981-09-08',1500,0,30); 
INSERT INTO EMP VALUES (7876,'ADAMS','CLERK',7788,'1987-07-13',1100,NULL,20); 
INSERT INTO EMP VALUES (7900,'JAMES','CLERK',7698,'1981-12-03',950,NULL,30); 
INSERT INTO EMP VALUES (7902,'FORD','ANALYST',7566,'1981-12-03',3000,NULL,20); 
INSERT INTO EMP VALUES (7934,'MILLER','CLERK',7782,'1982-01-23',1300,NULL,10);

3.bonus表

CREATE TABLE `bonus`(
    `ename` VARCHAR(10),
    `job` VARCHAR(9),
    `sal` INT, 
    `comm` INT
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

4.salgrade表

CREATE TABLE `salgrade` (  
    `grade` int, 
    `losal` int,  
    `hisal` int
) ENGINE=InnoDB DEFAULT CHARSET=utf8; 

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);

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