SQL查询内部连接4表

我试图显示已交付给成员的已购书籍的列表。该清单应显示会员识别号码，名字和姓氏，地址，联系电话，书籍序列号，书名，数量和交付日期。SQL查询内部连接4表

我的表是低于

CREATE TABLE Members 
      (
       MemberID nvarchar(50) NOT NULL PRIMARY KEY, 
       MemberName nvarchar(50) NOT NULL, 
       MemberAddress nvarchar(50), 
       MemberContact int, 
       MemberAge int, 
       RegistrationDate nvarchar(50) 
      ); 


      --Inserting Values into Members' Table-- 
      INSERT INTO Members(MemberID, MemberName, MemberAddress, MemberContact, MemberAge,RegistrationDate) 
      VALUES ('MEM01', 'Muhammed Abdul', 'Damansara','01121565987', '34', '20/02/2017'); 

     CREATE TABLE Book 
     ( 
      BookID nvarchar(50) NOT NULL PRIMARY KEY, 
      BookName nvarchar(50) NOT NULL, 
      BookCategory nvarchar(50), 
      BookPrice1 nvarchar(50), 
      Author nvarchar(50), 
      PublisherID nvarchar(50) NOT NULL FOREIGN KEY REFERENCES Publisher(PublisherID) 

     ); 
     --Inserting Values into Book Table-- 
     INSERT INTO Book(BookID, BookName, BookCategory, BookPrice1, Author, PublisherID) 
     VALUES ('B01', 'Harry Potter', 'Fantasy','70', 'Rowling J.K','PB01'); 

     CREATE TABLE Orders_Bookstore 
     (
      OrderID nvarchar(50) NOT NULL PRIMARY KEY, 
      BookID nvarchar(50) NOT NULL FOREIGN KEY REFERENCES Book(BookID), 
      OrderDate nvarchar(50), 
      OrderQuantity int, 
      OrderTotal int, 
      MemberID nvarchar(50) NOT NULL FOREIGN KEY REFERENCES Members(MemberID), 
     ); 
     --Inserting Values into Boookstore Orders table-- 
     INSERT INTO Orders_Bookstore(OrderID, BookID, OrderDate, OrderQuantity, OrderTotal, MemberID) 
     VALUES ('ORD1','B01', '04/06/2017', '3' ,'210', 'MEM01'); 

     CREATE TABLE Receipt 
     (
      ReceiptID nvarchar(50) NOT NULL PRIMARY KEY, 
      CartNum nvarchar(50) FOREIGN KEY REFERENCES ShoppingCart(CartNum), 
      DateOfDelivery nvarchar(50), 
      DeliveryStatus nvarchar(50), 
      MemberID nvarchar(50) FOREIGN KEY REFERENCES Members(MemberID) 
     ); 

     --Inserting Values INTO Receipt table-- 
     INSERT INTO Receipt(ReceiptID, CartNum, DateOfDelivery,DeliveryStatus) 
     VALUES ('REC1', 'CART1', '08/15/2017', 'Delivered');`

是我到目前为止已经试过，但没有运气：

SELECT MemberID, MemberName, MemberAddress, MemberContact, BookID, BookName, 
    OrderQuantity, DeliveryStatus, DateOfDelivery FROM Members 
    INNER JOIN Orders_Bookstore ON Members.MemberID=Orders_Bookstore.MemberID 
    INNER JOIN Members ON Orders_Bookstore.MemberID=Members.MemberID 
    INNER JOIN Book ON Orders_Bookstore.BookID=Book.BookID 
    INNER JOIN Receipt ON Receipt.MemberID=Members.MemberID

任何帮助，将不胜感激

来源

2017-06-12 James Kaider

问题与您的查询是什么？ – Jens

@Jens Msg 1013，Level 16，State 1，Line 17 FROM子句中的对象“成员”和“成员”具有相同的公开名称。使用相关名称来区分它们。 –

认为你可以删除INNER JOIN给成员，因为这是基表。 –

试试这个：

SELECT 
m.MemberID, m.MemberName, m.MemberAddress, m.MemberContact, 
b.BookID, b.BookName, 
ob.OrderQuantity, 
r.DeliveryStatus, r.DateOfDelivery 
    FROM Members m 
    INNER JOIN Orders_Bookstore ob ON m.MemberID=ob.MemberID 
    INNER JOIN Book b ON ob.BookID=b.BookID 
    INNER JOIN Receipt r ON r.MemberID=m.MemberID

请使用日期格式的所有日期。

来源

2017-06-12 12:11:49

作品，但没有出现..根本没有数据 –

@JamesKaider这是因为Receipt.MemberID为空。使用'MEM01'更新它 –

我必须向成员显示已交付的订单，因此我不应该使用WHERE Receipt.DeliveryStatus ='已交付'？ –

一个四个表连接需要3个内部连接。你正在使用4，这意味着你在某个地方使用了两次桌子。尝试：

SELECT MemberID 
    ,MemberName 
    ,MemberAddress 
    ,MemberContact 
    ,Book.BookID 
    ,BookName 
    ,OrderQuantity 
    ,DeliveryStatus 
    ,DateOfDelivery 
FROM Members m1 
INNER JOIN Orders_Bookstore ON m1.MemberID = Orders_Bookstore.MemberID 
INNER JOIN Book ON Orders_Bookstore.BookID = Book.BookID 
INNER JOIN Receipt ON Receipt.MemberID = m1.MemberID

来源

2017-06-12 12:00:32 apomene

消息209，级别16，状态1，行17 不明确的列名'MemberID'。消息209，级别16，状态1，行17 不明确的列名称'BookID'。错误 –

@JamesKaider，编辑 – apomene

我必须显示订单DELIVERED给成员，所以我不应该使用WHERE Receipt.DeliveryStatus ='Delivered'？ –

SQL查询内部连接4表

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