開(kāi)始轉(zhuǎn)向Oracle了,記錄一下自己的學(xué)習(xí)歷程
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先創(chuàng)建一些表吧:
---------------//////創(chuàng)建學(xué)生表 create table student( sno varchar2(10) primary key, sname varchar2(20), sage number(2), ssex varchar2(5) ); -------------/////////創(chuàng)建教師表 create table teacher( tno varchar2(10) primary key, tname varchar2(20) ); ------------ //////創(chuàng)建課程表 create table course( cno varchar2(10), cname varchar2(20), tno varchar2(20), constraint pk_course primary key (cno,tno) ); ----------------//////創(chuàng)建選課表 create table sc( sno varchar2(10), cno varchar2(10), score number(4,2), constraint pk_sc primary key (sno,cno) ); ------------------/////////////操作 /*******初始化學(xué)生表的數(shù)據(jù)******/ insert into student values ('s001','張三',23,'男'); insert into student values ('s002','李四',23,'男'); insert into student values ('s003','吳鵬',25,'男'); insert into student values ('s004','琴沁',20,'女'); insert into student values ('s005','王麗',20,'女'); insert into student values ('s006','李波',21,'男'); insert into student values ('s007','劉玉',21,'男'); insert into student values ('s008','蕭蓉',21,'女'); insert into student values ('s009','陳蕭曉',23,'女'); insert into student values ('s010','陳美',22,'女'); commit; /******************初始化教師表***********************/ insert into teacher values ('t001', '劉陽(yáng)'); insert into teacher values ('t002', '諶燕'); insert into teacher values ('t003', '胡明星'); commit; /***************初始化課程表****************************/ insert into course values ('c001','J2SE','t002'); insert into course values ('c002','Java Web','t002'); insert into course values ('c003','SSH','t001'); insert into course values ('c004','Oracle','t001'); insert into course values ('c005','SQL SERVER 2005','t003'); insert into course values ('c006','C#','t003'); insert into course values ('c007','JavaScript','t002'); insert into course values ('c008','DIV+CSS','t001'); insert into course values ('c009','PHP','t003'); insert into course values ('c010','EJB3.0','t002'); commit; /***************初始化成績(jī)表***********************/ insert into sc values ('s001','c001',78.9); insert into sc values ('s002','c001',80.9); insert into sc values ('s003','c001',81.9); insert into sc values ('s004','c001',60.9); insert into sc values ('s001','c002',82.9); insert into sc values ('s002','c002',72.9); insert into sc values ('s003','c002',81.9); insert into sc values ('s001','c003','59'); commit;
本文標(biāo)題:Oracle學(xué)習(xí)之路-SQL篇-預(yù)備數(shù)據(jù)
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