SQLITE INNERJOIN 噩梦，需要一个解决方案

Question

很高兴找到这样一个有用的网站，里面有天才成员(member)。一段时间以来，我一直在尝试寻找解决此 SQLITE 问题的方法。谷歌没有帮助我，除了找到这个网站。 SQL 查询在同一数据库的 MSAccess 版本上运行良好。

这是我的 SQL 语句 - 它对我不起作用。

<小时/>

SELECT Invoices.InvoiceNumber, Invoices.Quantity,Invoices.Code, Invoices.Price,Invoices.Discount, Invoices.InvoiceGrandTotal, Employees.EmployeeName, Customers.CustomerName, Invoices.DateOfInvoice, [price]*[Quantity] AS Total, Customers.Address, Products.Description,Products.Unit  
    FROM Products 
        INNER JOIN (
            (   
                ( Invoices INNER JOIN InvoiceDetails 
                    ON Invoices.InvoiceNumber = InvoiceDetails.InvoiceNumber
                ) INNER JOIN Customers 
                    ON Invoices.CustomerID = Customers.CustomerID
            ) INNER JOIN Employees 
                ON Invoices.UserID = Employees.EmployeeID
        ) ON Products.Code = InvoiceDetails.Code  
    WHERE (((InvoiceDetails.InvoiceNumber)='10111'));

<小时/>

错误消息是:“无法编译 Select-Statement:没有这样的列:Invoices.InvoiceNumber”

Answer 1

这通常意味着您拼错了列名称...检查您的发票表并确保该列是 InvoiceNumber 而不是“Invoice_Number”或类似的内容...

此外，这个查询的一个更简单的版本看起来像这样..没有所有奇怪的嵌套:

SELECT 
   Invoices.InvoiceNumber, 
   Invoices.Quantity,
   Invoices.Code, 
   Invoices.Price,
   Invoices.Discount, 
   Invoices.InvoiceGrandTotal, 
   Employees.EmployeeName, 
   Customers.CustomerName, 
   Invoices.DateOfInvoice, 
   [price]*[Quantity] AS Total, 
   Customers.Address, 
   Products.Description,
   Products.Unit 
FROM
   Invoices

   JOIN Employees 
      ON Employees.EmployeeID = Invoices.UserID 

   JOIN Customers 
      ON Customers.CustomerID = Invoices.CustomerID

   JOIN InvoiceDetails 
      ON InvoiceDetails.InvoiceNumber = Invoices.InvoiceNumber

   JOIN Products
      ON Products.Code = InvoiceDetails.Code

WHERE 
   InvoiceDetails.InvoiceNumber = '10111'