MySQL中建立Oracle學慣用表

java的征程終於到了JDBC，學習JDBC之前要複習下資料庫，在網上下載的是尚學堂Oracle的教材，而我本機只能裝上mysql,於是就想在mysql中建立oracle的學慣用表。費了白天勁還是成功了。

建立表的時候將NUMBER換成int,varchar2換成varchar,datetime換成date,插入表的時候用DATE函數。

1.建立資料庫
create database mydata;

2.使用資料庫
USE mydata

3.建立dept,emp表
//建立dept表
CREATE TABLE dept
(
deptno INT PRIMARY KEY,
dname VARCHAR(14),
loc VARCHAR(13)
);
//建立emp表
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)
);
//建立salgrade表
CREATE TABLE salgrade(
grade INT PRIMARY KEY,
losal INT,
hisal INT
)

4.insert資料
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');
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);
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)