1054 - 'on子句'中的未知列'XXX'

Question

几年前的SQL语句曾经工作过,现在它没有,我收到此错误消息:

1054 - 'on子句'中的未知列'Promotion_Card_details.Card_id'

这是我的SQL语句:

SELECT DISTINCT Promotion_Card_details.Card_id, 
       Promotion_Merchant_details.Merchant_id, 
       Promotion_details.Promotion_id, 
       Issuer_details.IssuerName, 
       Card_details.CCType, 
       PaymentType_details.PaymentTypeName, 
       Merchant_details.MerchantName, 
       PromotionText, 
       PromotionEndDate 
FROM Promotion_details 
INNER JOIN Card_details ON (Card_details.Card_id=Promotion_Card_details.Card_id) 
INNER JOIN Issuer_details ON (Issuer_details.Issuer_id=Card_details.Issuer_id) 
INNER JOIN PaymentType_details ON (PaymentType_details.PaymentType_id=Card_details.PaymentType_id) 
INNER JOIN Merchant_details ON (Merchant_details.Merchant_id=Promotion_Merchant_details.Merchant_id) 
INNER JOIN Promotion_Merchant_details ON (Promotion_Merchant_details.Promotion_id=Promotion_details.Promotion_id) 
INNER JOIN Promotion_Card_details ON (Promotion_details.Promotion_id=Promotion_Card_details.Promotion_id) 
WHERE ((Promotion_details.Promotion_id = '13' OR Promotion_details.Promotion_id = '14'  
            OR 
      Promotion_details.Promotion_id = '15' OR Promotion_details.Promotion_id = '16' OR 
      Promotion_details.Promotion_id = '17' OR Promotion_details.Promotion_id = '18' OR 
      Promotion_details.Promotion_id = '19' OR Promotion_details.Promotion_id = '20' OR
      Promotion_details.Promotion_id = '21' OR Promotion_details.Promotion_id = '22' OR 
      Promotion_details.Promotion_id = '23' OR Promotion_details.Promotion_id = '24' OR 
      Promotion_details.Promotion_id = '25' OR Promotion_details.Promotion_id = '361' 
      OR Promotion_details.Promotion_id = '364' OR Promotion_details.Promotion_id = '382') )

任何帮助将非常感激,因为我已经尝试围绕某些部分的括号,但它仍然没有修复它.

Answer 1

JOINs是左关联的,因此给定的ON子句只能引用已经提到的表.所以,重新排序这些:

FROM Promotion_details 
   INNER JOIN Card_details ON (Card_details.Card_id=Promotion_Card_details.Card_id) 
   INNER JOIN Issuer_details ON (Issuer_details.Issuer_id=Card_details.Issuer_id) 
   INNER JOIN PaymentType_details ON (PaymentType_details.PaymentType_id=Card_details.PaymentType_id) 
   INNER JOIN Merchant_details ON (Merchant_details.Merchant_id=Promotion_Merchant_details.Merchant_id) 
   INNER JOIN Promotion_Merchant_details ON (Promotion_Merchant_details.Promotion_id=Promotion_details.Promotion_id) 
   INNER JOIN Promotion_Card_details ON (Promotion_details.Promotion_id=Promotion_Card_details.Promotion_id)

按此顺序:

FROM Promotion_details 
   INNER JOIN Promotion_Card_details ON (Promotion_details.Promotion_id=Promotion_Card_details.Promotion_id)
   INNER JOIN Card_details ON (Card_details.Card_id=Promotion_Card_details.Card_id) 
   INNER JOIN Issuer_details ON (Issuer_details.Issuer_id=Card_details.Issuer_id) 
   INNER JOIN PaymentType_details ON (PaymentType_details.PaymentType_id=Card_details.PaymentType_id) 
   INNER JOIN Promotion_Merchant_details ON (Promotion_Merchant_details.Promotion_id=Promotion_details.Promotion_id) 
   INNER JOIN Merchant_details ON (Merchant_details.Merchant_id=Promotion_Merchant_details.Merchant_id)