Java数据库编程技术 第四章习题

3  为读者‘张无忌’办理借阅《红楼梦》书籍的手续

BEGIN;
INSERT INTO book()
VALUES('6','红楼梦','author6','pubComp6','2018-08-02','100','40');

INSERT INTO reader()
VALUES('7','张无忌','0','CHINA');

INSERT INTO borrow()
VALUES('7','6','2018-08-02 16:50:54','2018-08-05 16:57:04',NULL);

UPDATE `book` SET `bCount`=`bCount`-1
WHERE `bName`='红楼梦';

UPDATE `reader` set `lendNum`=`lendNum`+1
WHERE `rName`='张无忌';

COMMIT;

4  读者 ‘刘冰冰’缴纳罚金归还图书手续

BEGIN;
INSERT INTO book()
VALUES('7','西游记','author7','pubComp7','2018-08-02','100','30');

INSERT INTO reader()
VALUES('8','刘冰冰','1','CHINA');

INSERT INTO borrow()
VALUES('8','7','2018-08-02 16:50:54','2018-08-05 16:50:54',NULL);

INSERT INTO penalty()
VALUES('8','7','2018-08-06 12:00:00','1','4.6元');

UPDATE `borrow` SET `returnDate`=NOW()
WHERE  `rid`='8';

UPDATE `reader` SET `lendNum`=`lendNum`-1
WHERE  `rName`='刘冰冰';

UPDATE `book` SET `bCount`=`bCount`+1
WHERE  `bName`='西游记';

COMMIT;

5 查询视图

CREATE INDEX index_bName
on book(`bName`);


CREATE VIEW VIEW_admin
AS
SELECT book.bName,borrow.willDate,reader.rName
FROM borrow
INNER JOIN book ON book.bid=borrow.nif
INNER JOIN reader ON reader.rid=borrow.rid
WHERE willDate

6   数据库备份，恢复何数据导出

mysqldump -u root -p libarary>C:\数据库备份\libarary_20180807.sql

CREATE DATABASE libarary;
USE libarary;
source C:\数据库备份\libarary_20180807.sql;


SELECT * FROM reader INTO OUTFILE 'C:\数据库备份\reader.txt';
SELECT * FROM book INTO OUTFILE 'C:\数据库备份\book.txt';