MS Access數據庫SQL查詢

Question

我有3個表，分別稱為“發票”，“客戶”和“公司”。 我想使用Query將這三個表合並為單個表。 發票表中包含客戶ID和公司ID。 如何加入3張桌子？

我試過發票和客戶表與此查詢一起正常工作。 但是我不知道要添加第三張表。

SELECT RPT_Invoice_Less.InvoiceNumber, RPT_Invoice_Less.Terms,
    RPT_Invoice_Less.Invoicedate, RPT_Invoice_Less.OurQuote,
    RPT_Invoice_Less.SalesPerson, RPT_Customer.CustomerName,
    RPT_Customer.CustomerId, RPT_Customer.ContactPerson,
    RPT_Customer.BillingAddress, RPT_Customer.DeliveryAddress,
    RPT_Invoice_Less.OrderNumber, RPT_Invoice_Less.ShippingBy,
    RPT_Invoice_Less.ShipReferenceNo, RPT_Invoice_Less.Notes,
    RPT_Invoice_Less.Price, RPT_Invoice_Less.Discount,
    RPT_Invoice_Less.Shipping, RPT_Invoice_Less.Tax,
    RPT_Invoice_Less.GrandTotal, RPT_Invoice_Less.Company
FROM RPT_Invoice_Less
INNER JOIN RPT_Customer
ON RPT_Invoice_Less.CustomerId = RPT_Customer.CustomerId;

此代碼適用於2個表

SELECT RPT_Invoice_Less.InvoiceNumber, RPT_Invoice_Less.Terms, RPT_Invoice_Less.Invoicedate, RPT_Invoice_Less.OurQuote, RPT_Invoice_Less.SalesPerson, RPT_Customer.CustomerName, RPT_Customer.CustomerId, RPT_Customer.ContactPerson, RPT_Customer.BillingAddress, RPT_Customer.DeliveryAddress, RPT_Invoice_Less.OrderNumber, RPT_Invoice_Less.ShippingBy, RPT_Invoice_Less.ShipReferenceNo, RPT_Invoice_Less.Notes, RPT_Invoice_Less.Price, RPT_Invoice_Less.Discount, RPT_Invoice_Less.Shipping, RPT_Invoice_Less.Tax, RPT_Invoice_Less.GrandTotal, RPT_OrionSystem.Company, RPT_OrionSystem.CompanyId
FROM RPT_Invoice_Less 
INNER JOIN RPT_Customer 
ON RPT_Invoice_Less.CustomerId = RPT_Customer.CustomerId
INNER JOIN RPT_OrionSystem
ON RPT_Invoice_Less.CompanyId = RPT_OrionSystem.CompanyId;

此代碼顯示語法錯誤。

幫我添加第三公司表。

Answer 1

假設你有一個CompanyID領域（或類似的東西） RPT_Customer表或RPT_Invoice_Less ，它只是增加一個INNER JOIN的問題

....
FROM ((RPT_Invoice_Less
INNER JOIN RPT_Customer
ON RPT_Invoice_Less.CustomerId = RPT_Customer.CustomerId)
INNER JOIN RPT_OrionSystem 
ON  RPT_Invoice_Less.CompanyID = RPT_OrionSystem.CompanyID)