USE master
GO
IF EXISTS(SELECT * FROM master.dbo.sysdatabases WHERE NAME='Library')
DROP DATABASE Library
GO
CREATE DATABASE Library
ON(
NAME='Librarydata',
FILENAME='D:\project\Librarydata.mdf',
size=5,
FILEGROWTH=15%
)
Log ON
(
NAME='Librarylog',
FILENAME='D:\project\Librarylog.ldf',
SIZE=1,
FILEGROWTH=15%
)
GO
/*
*创建四个表
*/
Use Library
GO
IF EXISTS(SELECT * FROM sysobjects WHERE NAME=' Book')
DROP TABLE Book
GO
CREATE TABLE Book(
BID varchar(50) not null,
BNAME varchar(50) not null,
Author varchar(20) not null,
PubComp varchar(20) not null,
PubDate datetime not null,
BCount int not null,
Price float not null,
)
GO
IF EXISTS(SELECT * FROM sysobjects WHERE NAME='Reader')
DROP TABLE Reader
GO
CREATE TABLE Reader(
RID varchar(50) not null,
RNAME varchar(50) not null,
LendNum int not null
)
GO
IF EXISTS(SELECT * FROM sysobjects WHERE NAME='Borrow')
Drop TABLE Borrow
GO
CREATE TABLE Borrow (
RID varchar(50) not null,
BID varchar(50) not null,
LendDate datetime not null,
WillDate datetime not null,
ReturnDate datetime
)
GO
IF EXISTS(SELECT * FROM sysobjects WHERE NAME='Penalty')
Drop TABLE Penalty
GO
CREATE TABLE Penalty(
RID varchar(50) not null,
BID varchar(50) not null,
PDate datetime not null,
PType int not null,
Amount float not null
)
GO
/*
*分别给四个表添加约束
*/
ALTER TABLE Book ADD CONSTRAINT pk_bid PRIMARY KEY(BID)
ALTER TABLE Book ADD CONSTRAINT ck_bid CHECK(BID LIKE 'ISBN%')
ALTER TABLE Book ADD CONSTRAINT ck_pubdate CHECK(PubDate =1)
ALTER TABLE Book ADD CONSTRAINT ck_price CHECK(Price >0)
ALTER TABLE Reader ADD CONSTRAINT pk_rid PRIMARY KEY(RID)
ALTER TABLE Reader ADD CONSTRAINT ck_lendnum CHECK(LendNum>=0)
ALTER TABLE Borrow ADD CONSTRAINT fk_borrowrid FOReign KEY(RID) REFERENCES Reader(RID)
ALTER TABLE Borrow ADD CONSTRAINT fk_borrowbid FOReign KEY(BID) REFERENCES Book(BID)
ALTER TABLE Borrow ADD CONSTRAINT dk_lenddate DEFAULT (getDate()) FOR LendDate
ALTER TABLE Borrow ADD CONSTRAINT dk_willdate DEFAULT(DateADD(mm,1,getDate())) FOR willdate
ALTER TABLE Borrow ADD CONSTRAINT ck_willdate CHECK(WillDate >=getDate())
ALTER TABLE Penalty ADD CONSTRAINT fk_penaltyrid FOReign KEY(RID) REFERENCES Reader(RID)
ALTER TABLE Penalty ADD CONSTRAINT fk_penaltybid FOReign KEY(BID) REFERENCES Book(BID)
ALTER TABLE Penalty ADD CONSTRAINT dk_pdate DEFAULT(getDate()) FOR PDate
ALTER TABLE Penalty ADD CONSTRAINT ck_ptype CHECK(PType LIKE '[1-3]')
ALTER TABLE Penalty ADD CONSTRAINT ck_amount CHECK(Amount >0)
/*
*向表中插入信息
*/
INSERT INTO Book VALUES('ISBN001','java','cay s.horstmann','jixiegongye',02-02-90, 100,200.0)
INSERT INTO Book VALUES('ISBN002','.net','cay s.horstmann','jixiegongye',03-03-90, 200,240.0)
INSERT INTO Reader VALUES('001','zhangYongwei','1')
INSERT INTO Reader VALUES('002','zhangDawei','2')
INSERT INTO Borrow(RID,BID) VALUES('001','ISBN001')
INSERT INTO Borrow(RID,BID) VALUES ('002','ISBN002')
INSERT INTO Penalty(RID ,BID,PType,Amount) VALUES('001','ISBN001',1,2000)
INSERT INTO Penalty(RID,BID ,PType,Amount)VALUES('002','ISBN002',3,500)
