資料庫原理 、 SQL(DDL、DML)
阿新 • • 發佈:2019-01-04
- DROP TABLEdept;
- CREATE TABLE dept
- (deptnoNUMBER(2) CONSTRAINTPK_DEPT PRIMARYKEY,
- dnameVARCHAR2(14) ,
- locVARCHAR2(13) ) ;
- DROP TABLEemp;
- CREATE TABLE emp
- (empnoNUMBER(4) CONSTRAINTPK_EMP PRIMARYKEY,
- enameVARCHAR2(10),
- jobVARCHAR2(15),
- mgrNUMBER(4),
- hiredateDATE,
- salNUMBER
- commNUMBER(7,2),
- deptnoNUMBER(2) CONSTRAINTFK_DEPTNO REFERENCESDEPT);
- 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');
- SELECT * FROM
- INSERT INTO empVALUES(7369,'SMITH','CLERK',7902,to_date('17-12-1980','dd-mm-yyyy'),800,NULL,20);
- INSERT INTO empVALUES(7499,'ALLEN','SALESMAN',7698,to_date('20-2-1981','dd-mm-yyyy'),1600,300,30);
- INSERT INTO empVALUES(7521,'WARD','SALESMAN',7698,to_date('22-2-1981','dd-mm-yyyy'),1250,500,30);
- INSERT INTO empVALUES
- INSERT INTO empVALUES(7654,'MARTIN','SALESMAN',7698,to_date('28-9-1981','dd-mm-yyyy'),1250,1400,30);
- INSERT INTO empVALUES(7698,'BLAKE','MANAGER',7839,to_date('1-5-1981','dd-mm-yyyy'),2850,NULL,30);
- INSERT INTO empVALUES(7782,'CLARK','MANAGER',7839,to_date('9-6-1981','dd-mm-yyyy'),2450,NULL,10);
- INSERT INTO empVALUES(7788,'SCOTT','ANALYST',7566,to_date('19-4-87','dd-mm-yyyy'),3000,NULL,20);
- INSERT INTO empVALUES(7839,'KING','PRESIDENT',NULL,to_date('17-11-1981','dd-mm-yyyy'),5000,NULL,10);
- INSERT INTO empVALUES(7844,'TURNER','SALESMAN',7698,to_date('8-9-1981','dd-mm-yyyy'),1500,0,30);
- INSERT INTO empVALUES(7876,'ADAMS','CLERK',7788,to_date('23-5-87','dd-mm-yyyy'),1100,NULL,20);
- INSERT INTO empVALUES(7900,'JAMES','CLERK',7698,to_date('3-12-1981','dd-mm-yyyy'),950,NULL,30);
- INSERT INTO empVALUES(7902,'FORD','ANALYST',7566,to_date('3-12-1981','dd-mm-yyyy'),3000,NULL,20);
- INSERT INTO empVALUES(7934,'MILLER','CLERK',7782,to_date('23-1-1982','dd-mm-yyyy'),1300,NULL,10);
DROP TABLE dept; CREATE TABLE dept (deptno NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY, dname VARCHAR2(14) , loc VARCHAR2(13) ) ; DROP TABLE emp; CREATE TABLE emp (empno NUMBER(4) CONSTRAINT PK_EMP PRIMARY KEY, ename VARCHAR2(10), job VARCHAR2(15), mgr NUMBER(4), hiredate DATE, sal NUMBER(7,2), comm NUMBER(7,2), deptno NUMBER(2) CONSTRAINT FK_DEPTNO REFERENCES DEPT); 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'); SELECT * FROM dept; INSERT INTO emp VALUES(7369,'SMITH','CLERK',7902,to_date('17-12-1980','dd-mm-yyyy'),800,NULL,20); INSERT INTO emp VALUES(7499,'ALLEN','SALESMAN',7698,to_date('20-2-1981','dd-mm-yyyy'),1600,300,30); INSERT INTO emp VALUES(7521,'WARD','SALESMAN',7698,to_date('22-2-1981','dd-mm-yyyy'),1250,500,30); INSERT INTO emp VALUES(7566,'JONES','MANAGER',7839,to_date('2-4-1981','dd-mm-yyyy'),2975,NULL,20); INSERT INTO emp VALUES(7654,'MARTIN','SALESMAN',7698,to_date('28-9-1981','dd-mm-yyyy'),1250,1400,30); INSERT INTO emp VALUES(7698,'BLAKE','MANAGER',7839,to_date('1-5-1981','dd-mm-yyyy'),2850,NULL,30); INSERT INTO emp VALUES(7782,'CLARK','MANAGER',7839,to_date('9-6-1981','dd-mm-yyyy'),2450,NULL,10); INSERT INTO emp VALUES(7788,'SCOTT','ANALYST',7566,to_date('19-4-87','dd-mm-yyyy'),3000,NULL,20); INSERT INTO emp VALUES(7839,'KING','PRESIDENT',NULL,to_date('17-11-1981','dd-mm-yyyy'),5000,NULL,10); INSERT INTO emp VALUES(7844,'TURNER','SALESMAN',7698,to_date('8-9-1981','dd-mm-yyyy'),1500,0,30); INSERT INTO emp VALUES(7876,'ADAMS','CLERK',7788,to_date('23-5-87','dd-mm-yyyy'),1100,NULL,20); INSERT INTO emp VALUES(7900,'JAMES','CLERK',7698,to_date('3-12-1981','dd-mm-yyyy'),950,NULL,30); INSERT INTO emp VALUES(7902,'FORD','ANALYST',7566,to_date('3-12-1981','dd-mm-yyyy'),3000,NULL,20); INSERT INTO emp VALUES(7934,'MILLER','CLERK',7782,to_date('23-1-1982','dd-mm-yyyy'),1300,NULL,10);