高級查詢代碼1064 MySQL錯誤

Question

嘗試執行以下查詢時，我總是收到錯誤消息：

SELECT C.CustomerID WITH C.CustomerName WITH O.OrderDate WITH O.TotalOrderAmount
FROM CUSTOMERS C
LEFT JOIN [ORDERS] 0
ON C.CustomerID=O.CustomerID

UNION

SELECT C.CustomerID, C.CustomerName, O.OrderDate, O.TotalOrderAmount
FROM CUSTOMERS C
RIGHT JOIN [ORDERS] 0
On C.CustomerID-O.CustomerID;

以下是我在MySQL中收到的代碼：

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '[ORDERS] 0 ON C.CustomerID=O.CustomerID  UNION  SELECT C.CustomerID, C.CustomerN' at line 3

可以提供任何糾正此錯誤的幫助，我們深表感謝。

Answer 1

表別名不能為數字。 並with是不一樣as 。 試試這個版本：

SELECT C.CustomerID, C.CustomerName, O.OrderDate, O.TotalOrderAmount
FROM CUSTOMERS C LEFT JOIN
     [ORDERS] o  -- not 0
     ON C.CustomerID = O.CustomerID
UNION
SELECT C.CustomerID, C.CustomerName, O.OrderDate, O.TotalOrderAmount
FROM CUSTOMERS C RIGHT JOIN
     [ORDERS] o  -- not 0
     On C.CustomerID = O.CustomerID;  -- not -

我還應該提到，這不是形成full join的最佳方法。

Answer 2

只是完全加入而不是工會。 應該在這里給您相同的結果：

SELECT C.CustomerID, C.CustomerName, O.OrderDate, O.TotalOrderAmount
FROM CUSTOMERS C
full JOIN [ORDERS] 0
On C.CustomerID-O.CustomerID