SQL 错误“1 接近 'inner'，语法错误”W3C 示例数据库

Question

select OD.orderID, C.CustomerName, O.OrderDate,          
    round(sum(P.Price*OD.Quantity)) as TotalPrice 
inner join OrderDetails as OD on OD.OrderID=O.OrderID 
inner join Products as P on OD.ProductID=P.ProductID 
inner join Customers as C on O.CustomerID=C.CustomerID 
group by OD.OrderID 
Order by TotalPrice 
limit 5

这是我的 SQL 声明。它给我 'inner' 语法错误... 请问有什么问题吗？

Answer 1

您的 SQL 语句缺少 FROM 子句：

select OD.orderID, C.CustomerName, O.OrderDate,          
  round(sum(P.Price*OD.Quantity)) as TotalPrice 
FROM <your driving table here>
inner ...

据推测，您想 select 来自 Orders:

select OD.orderID, C.CustomerName, O.OrderDate,          
  round(sum(P.Price*OD.Quantity)) as TotalPrice 
FROM Orders as O
inner ...

SQL 错误“1 接近 'inner'，语法错误”W3C 示例数据库

SQL ERROR "1 near 'inner', Syntax Error" W3C sample database

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inner-join

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