学生借书查询

Posted 2020-07-10

USE BOOK
GO
SELECT 
学生编号=stuID,
学生姓名=(SELECT stuName FROM dbo.STUDENT WHERE stuID = dbo.Borrow.stuID),
图书编号=BID,
图书名称=(SELECT Title FROM dbo.BOOK WHERE BID=dbo.Borrow.BID),
借出日期=T_time
FROM dbo.Borrow 
WHERE stuID IN (SELECT stuID FROM dbo.STUDENT WHERE Major=‘计算机‘)
AND 
T_time > ‘2007-12-15‘ AND T_time < ‘2008-1-8‘

SELECT stuID AS 学生编号 ,
(SELECT stuName FROM dbo.STUDENT WHERE stuID = dbo.Borrow.stuID) AS 学生姓名,
BID AS 图书编号,
(SELECT Title FROM dbo.BOOK WHERE BID = dbo.Borrow.BID) AS 图书名称,
T_time AS 借出日期 
FROM dbo.Borrow 
WHERE stuID IN (SELECT stuID FROM dbo.STUDENT WHERE Major = ‘计算机‘)
AND T_time BETWEEN ‘2007-10-15‘ AND ‘2008-1-8‘

SELECT 
stuID AS 学生编号,
stuName AS 学生姓名,
Major AS 专业
 FROM dbo.STUDENT
 WHERE stuID IN (SELECT stuID FROM dbo.Borrow)



 SELECT 
  (select stuName FROM dbo.STUDENT WHERE stuID = dbo.Borrow.stuID) AS 学生姓名,
  (SELECT Title  FROM dbo.BOOK WHERE BID = dbo.Borrow.BID) AS 图书名称 
 FROM dbo.Borrow
 WHERE BID IN (SELECT BID FROM dbo.BOOK WHERE Author=‘蒋金楠‘ )

 SELECT 
  (select stuName FROM dbo.STUDENT WHERE stuID = dbo.Borrow.stuID) AS 学生姓名,
  COUNT(*) AS 借书数量
  FROM dbo.Borrow WHERE B_time IS NULL
  GROUP BY stuID