数据库系统原理与设计（万常选）第三版 第3章第7章习题答案

3.1 查询1991年出生的读者姓名、工作单位和身份证号。
SELECT readerName,workUnit,identitycard
FROM Reader
WHERE SUBSTRING(identitycard,7,4) =‘1991’
3.2 查询图书名中含有“数据库”的图书的详细信息。
SELECT *
FROM Book
WHERE bookName LIKE ‘%数据库%’
3.3 查询在2015-2016年之间入库的图书编号、出版时间、入库时间和图书名称，并按入库时间降序排序输出。
SELECT bookNo,bookName,publishingDate,shopDate
FROM Book
WHERE YEAR(shopDate) BETWEEN 2015 AND 2016
ORDER BY shopDate DESC
3.4 查询读者“喻自强”借阅的图书编号、图书名称、借书日期和归还日期。
SELECT Book.bookNo,bookName,borrowDate,returnDate
FROM Book,Borrow
WHERE Book.bookNo=Borrow.bookNo AND readerNo IN(
SELECT readerNo
FROM Reader
WHERE readerName=‘喻自强’ ）
3.5 查询借阅了清华大学出版社出版的图书的读者编号、读者姓名、图书名称、借书日期和归还日期。
SELECT Reader.readerNo,readerName,bookName,borrowDate,returnDate
FROM Reader,Borrow,Book,Publisher
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND Publisher. PublisherNo= Book. PublisherNo AND publisherName=‘清华大学出版社’
3.6 查询上海生物研究室没有归还所借图书的读者编号、读者姓名、图书名称、借书日期和应归还日期。
SELECT Reader.readerNo,readerName,bookName,borrowDate,shouldDate
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND workUnit=‘上海生物研究室’ AND returnDate IS NULL
3.7 查询在2015-2016年之间借阅但没有归还图书的读者编号、读者姓名、读者工作单位以及这些借阅未归还图书的图书编号、图书名称和借书日期（分别使用IN子查询和存在量词子查询表达）。
SELECT a.readerNo,readerName,workUnit,c.bookNo,bookName, borrowDate
FROM Reader a,Borrow b,Book c
WHERE a.readerNo=b.readerNo AND b.bookNo=c.bookNo AND returnDate IS NULL AND a.readerNO IN(
SELECT readerNo
FROM Borrow
WHERE YEAR(borrowDate) BETWEEN 2015 AND 2016 AND returnDate IS NULL )
3.8 查询每种类别的图书分类号、分类名称、最高价格和平均价格，并按最高价格的降序输出。
SELECT Book.classNo,BookClass.className,MAX(price) AS maxPrice,AVG(price) AS avgPrice
FROM Book,BookClass
WHERE Book.classNo=BookClass.classNo
GROUP BY Book.classNo,className
ORDER BY MAX(price) DESC
3.9 查询每个读者在借（即借阅未归还）的图书数量、读者编号、读者姓名和工作单位，并按借书数量的降序排序输出。
SELECT Reader.readerNo,Reader.readerName,Reader.workUnit,COUNT() AS 未归还图书数量
FROM Reader,Borrow
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.returnDate IS NULL
GROUP BY Reader.readerNo,Reader.readerName,Reader.workUnit
3.10查询每个出版社出版的每种类别的图书平均价格，要求显示出版社名称、图书类名称和平均价格。
SELECT Publisher.publisherName,BookClass.className,AVG(price) AS 平均价格
FROM Book,Publisher,BookClass
WHERE Book.classNo=BookClass.classNo AND Book.publisherNo=Publisher.publisherNo
GROUP BY Book.publisherNo, Publisher.publisherName,BookClass.className
3.11 查询所借图书的总价不低于200元的读者编号、读者姓名和所借图书的总价。
SELECT Reader.readerNo,readerName,SUM(price) AS money
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND returnDate IS NULL
GROUP BY Reader.readerNo,readerName
HAVING SUM(price)>200
3.12查询从来没有借过书的读者姓名和工作单位（分别使用IN子查询和存在量词子查询表达）
–use IN
SELECT readerName,workUnit FROM Reader
WHERE readerNo NOT IN(
SELECT readerNo FROM Borrow )
–use EXISTS
SELECT readerName,workUnit FROM Reader
WHERE NOT EXISTS(
SELECT * FROM Borrow WHERE Reader.readerNo=Borrow.readerNo)
3.13 查询没有借阅“经济类”图书的读者编号、读者姓名和出生日期（分别使用IN子查询和存在量词子查询表达）。
–use IN
SELECT Reader.readerNo,readerName,SUBSTRING(identitycard,7,8) AS birthday
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo AND returnDate IS NULL AND Book.classNo NOT IN(
SELECT classNo FROM BookClass WHERE className=‘经济类’ )
–use EXISTS
SELECT Reader.readerNo,readerName,SUBSTRING(identitycard,7,8) AS birthday
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo AND returnDate IS NULL AND NOT EXISTS (
SELECT * FROM BookClass WHERE className=‘经济类’ AND Book.classNo=BookClass.classNo )
3.14 查询既借阅了“政治经济学”图书又借阅了“数据库系统概念”两本图书的读者编号、读者姓名以及这两种图书的图书名称、借书日期和归还日期。
SELECT Reader.readerNo,readerName,bookName,borrowDate,returnDate
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND (bookName=‘政治经济学’ OR bookName=‘数据库系统概念’)
AND Reader.readerNo IN(
SELECT readerNo FROM Borrow WHERE bookNo IN(
SELECT bookNo FROM Book WHERE bookName=‘政治经济学’ ) )
AND Reader.readerNo IN(
SELECT readerNo FROM Borrow WHERE bookNo IN(
SELECT bookNo FROM Book WHERE bookName=‘数据库系统概念’ ) )
或
SELECT Reader.readerNo,readerName,borrowDate,bookName
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND (bookName=‘政治经济学’ OR bookName=‘数据库系统概念’)
AND Reader.readerNo IN
(SELECT Reader.readerNo
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND bookName=‘政治经济学’
AND Reader.readerNo IN (
SELECT Borrow.readerNo FROM Borrow,Book
WHERE Borrow.bookNo=Book.bookNo AND bookName=‘数据库系统概念’))
3.15 查询借阅过图书名称中包含“数据库”的所有图书的读者编号、读者姓名以及他们所借阅的这些图书的图书名称、借阅日期和归还日期。
SELECT Reader.readerNo,Reader.readerName,Book.bookName,Borrow.borrowDate,Borrow.returnDate
FROM Book,Reader,Borrow
WHERE Book.bookNo=Borrow.bookNo AND Reader.readerNo=Borrow.readerNo
AND returnDate IS NOT NULL AND bookName LIKE ‘%数据库%’
3.16 查询至少借阅过读者“张小娟”所借阅过的所有图书的读者编号、读者姓名和工作单位。
SELECT readerNo,readerName,workUnit
FROM Reader r
WHERE NOT EXISTS(
SELECT * FROM Borrow b1,Reader r1 WHERE b1.readerNo=r1.readerNo AND readerName=‘张小娟’
AND NOT EXISTS(
SELECT * FROM Borrow b2
WHERE b2.bookNo=b1.bookNo AND B2.readerNo=r.readerNo ) )
3.17 查询至少有3本在借图书的读者编号、读者姓名以及在借图书的图书编号、图书名称，并按读者编号升序、借阅日期降序排序输出。
SELECT Reader.readerNo,readerName,Book.bookNo,bookName
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo AND
returnDate IS NULL AND Reader.readerNo IN(
SELECT readerNo FROM Borrow
WHERE returnDate IS NULL GROUP BY readerNo HAVING COUNT()>=3 )
ORDER BY Reader.readerNo
3.18 查询所借阅的图书（包括已归还的图书）总价最高的读者编号、读者姓名和出生日期。
SELECT readerNo,readerName,SUBSTRING(identitycard,7,8) AS birthday
FROM Reader
WHERE readerNo IN(
SELECT readerNo FROM Borrow,Book
WHERE Borrow.bookNo=Book.bookNo
GROUP BY readerNo HAVING SUM(price) >=ALL(
SELECT SUM(price) FROM Borrow,Book
WHERE Borrow.bookNo=Book.bookNo
GROUP BY readerNo ))

第七章
7.2 在图书管理数据库BookDB中用SQL语句完成如下操作
（1） 将“经济管理”类图书的单价提高10%。
UPDATE Book
SET price=price1.1 WHERE classNo IN(
SELECT classNo FROM BookClass WHERE className=‘经济类’ )
（2） 将入库数量最多的图书单价下调5%。
UPDATE Book
SET price=price0.95 WHERE shopNum =
(SELECT MAX(SHOPNUM) FROM BOOK)
（3）删除读者“张小娟”的借书记录
DELETE FROM Borrow WHERE readerNo IN
(SELECT readerNo FROM Reader WHERE Reader.readerName=‘张小娟’)
（4）创建一个视图，该视图为所借图书的总价在60元以上的读者编号、读者姓名和所借图书的总价。
CREATE VIEW BookView1 AS
SELECT Reader.readerNo,readerName,SUM(price) AS money
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
GROUP BY Reader.readerNo,readerName
HAVING SUM(price)>=60
（5）创建一个视图，该视图为年龄在25-35岁之间的读者，属性列包括读者编号、读者姓名、年龄、工作单位、所借图书名称和借书日期。
CREATE VIEW BookView2 AS
SELECT Reader.readerNo,readerName,SUBSTRING(identitycard,7,8) AS birthday,workUnit,bookName,borrowDate
FROM Reader,Borrow,Book
WHERE Reader.readerNo=Borrow.readerNo AND Borrow.bookNo=Book.bookNo
AND year(getdate())-CONVERT(int,SUBSTRING(identitycard,7,4)) BETWEEN 25 AND 35
（6）创建一个视图，该视图仅包含“清华大学出版社”在2015–2016年出版的“计算机类”的图书基本信息。
CREATE VIEW BookView3 AS
SELECT * FROM Book
WHERE publisherNo =
(SELECT publisherNo FROM Publisher WHERE publisherName= ‘清华大学出版社’)
AND YEAR(publishingDate) IN(2015,2016)
AND classNo=(SELECT classNo FROM BookClass WHERE className=‘计算机类’)
（7）对由题（6）所建立的视图进行插入、删除和更新操作。
INSERT BookView3
VALUES(‘0000001’,‘003’,‘Linux网络技术’,‘王波’,‘P005’, 28,‘2014-5-1’, ‘2015-1-11’,80)
DELETE BookView3 WHERE bookName LIKE ‘Linux%’
UPDATE BookView3 SET shopNum=shopNum+10

INSERT BookView3
VALUES(‘0000003’,‘003’,‘Linux网络技术’,‘王波’,‘P002’, 28,‘2015-5-1’, ‘2016-1-11’,80)