95 lines
3.3 KiB
MySQL
95 lines
3.3 KiB
MySQL
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CREATE DATABASE IF NOT EXISTS workson;
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USE workson;
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SET FOREIGN_KEY_CHECKS = 0;
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DROP TABLE IF EXISTS workson;
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DROP TABLE IF EXISTS proj;
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DROP TABLE IF EXISTS emp;
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DROP TABLE IF EXISTS dept;
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SET FOREIGN_KEY_CHECKS = 1;
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CREATE TABLE emp (
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eno CHAR(5) NOT NULL,
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ename VARCHAR(30),
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bdate DATE,
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title CHAR(2),
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salary DECIMAL(9,2),
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supereno CHAR(5),
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dno CHAR(5),
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PRIMARY KEY (eno)
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) ENGINE = InnoDB;
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CREATE TABLE dept (
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dno CHAR(5) NOT NULL,
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dname VARCHAR(40),
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mgreno CHAR(5),
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PRIMARY KEY (dno),
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CONSTRAINT FK_dept_emp FOREIGN KEY (mgreno) REFERENCES emp (eno) ON DELETE SET NULL) ENGINE = InnoDB;
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ALTER TABLE emp ADD CONSTRAINT FK_emp_dept FOREIGN KEY (dno) REFERENCES dept(dno);
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CREATE TABLE proj (
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pno CHAR(5) NOT NULL,
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pname VARCHAR(40),
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budget DECIMAL(9,2),
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dno CHAR(5),
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PRIMARY KEY (pno),
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CONSTRAINT FK_proj_dept FOREIGN KEY (dno) REFERENCES dept(dno) ON DELETE SET NULL) ENGINE = InnoDB;
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CREATE TABLE workson (
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eno CHAR(5) NOT NULL,
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pno CHAR(5) NOT NULL,
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resp VARCHAR(20),
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hours SMALLINT,
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CONSTRAINT PK_workson PRIMARY KEY (eno,pno),
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CONSTRAINT FK_workson_emp FOREIGN KEY (eno) REFERENCES emp (eno),
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CONSTRAINT FK_workson_proj FOREIGN KEY (pno) REFERENCES proj (pno)) ENGINE = InnoDB;
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INSERT INTO dept VALUES ('D1','Management',NULL);
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INSERT INTO dept VALUES ('D2','Consulting',NULL);
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INSERT INTO dept VALUES ('D3','Accounting',NULL);
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INSERT INTO dept VALUES ('D4','Development',NULL);
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INSERT INTO proj VALUES ('P1','Instruments',150000,'D1');
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INSERT INTO proj VALUES ('P2','DB Develop',135000,'D2');
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INSERT INTO proj VALUES ('P3','Budget',250000,'D3');
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INSERT INTO proj VALUES ('P4','Maintenance',310000,'D2');
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INSERT INTO proj VALUES ('P5','CAD/CAM',500000,'D2');
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INSERT INTO emp VALUES ('E1','J. Doe','1975-01-05','EE',30000,null,null);
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INSERT INTO emp VALUES ('E2','M. Smith','1966-06-04','SA',50000,null,'D3');
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INSERT INTO emp VALUES ('E3','A. Lee','1966-07-05','ME',40000,null,'D2');
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INSERT INTO emp VALUES ('E4','J. Miller','1950-09-01','PR',20000,null,'D3');
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INSERT INTO emp VALUES ('E5','B. Casey','1971-12-25','SA',50000,null,'D3');
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INSERT INTO emp VALUES ('E6','L. Chu','1965-11-30','EE',30000,null,'D2');
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INSERT INTO emp VALUES ('E7','R. Davis','1977-09-08','ME',40000,null,'D1');
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INSERT INTO emp VALUES ('E8','J. Jones','1972-10-11','SA',50000,null,'D1');
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UPDATE emp SET supereno = 'E2' WHERE eno = 'E1';
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UPDATE emp SET supereno = 'E5' WHERE eno = 'E2';
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UPDATE emp SET supereno = 'E7' WHERE eno = 'E3';
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UPDATE emp SET supereno = 'E6' WHERE eno = 'E4';
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UPDATE emp SET supereno = 'E8' WHERE eno = 'E5';
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UPDATE emp SET supereno = 'E7' WHERE eno = 'E6';
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UPDATE emp SET supereno = 'E8' WHERE eno = 'E7';
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Update dept SET mgreno = 'E8' WHERE dno = 'D1';
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Update dept SET mgreno = 'E7' WHERE dno = 'D2';
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Update dept SET mgreno = 'E5' WHERE dno = 'D3';
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INSERT INTO workson VALUES ('E1','P1','Manager',12);
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INSERT INTO workson VALUES ('E2','P1','Analyst',24);
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INSERT INTO workson VALUES ('E2','P2','Analyst',6);
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INSERT INTO workson VALUES ('E3','P3','Consultant',10);
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INSERT INTO workson VALUES ('E3','P4','Engineer',48);
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INSERT INTO workson VALUES ('E4','P2','Programmer',18);
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INSERT INTO workson VALUES ('E5','P2','Manager',24);
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INSERT INTO workson VALUES ('E6','P4','Manager',48);
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INSERT INTO workson VALUES ('E7','P3','Engineer',36);
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