sql-server-2005 - 内部联接中的 SQL 查询问题

Question

我有桌子Creditcard，，Childcreditcard1Childcreditcard2

儿童信用卡1

CreditcardID  TranscationDatetime
22222132132   2010-04-11 12:36:10.210
22222132134   2011-04-11 12:36:10.210
12364132122   2019-04-11 12:36:10.210
45677132124   2011-04-11 12:36:10.210
45677132124   2012-04-11 12:36:10.210

儿童信用卡2

CreditcardID  TranscationDatetime
22222132132   2010-04-11 12:36:10.210
22222732134   2011-04-11 12:36:10.210
12364132192   2019-04-11 12:36:10.210

万事达信用卡

CreditcardID            primaryCreditID
22222132132     22222132132             
22222132134     22222132132             
12364132122     12364132122         
45677132124     45677132124
45677232124     45677232124     
78567723212     78567723212 
23677232124     23677232124 
45678944343     45678944343
22222732134     22222732134
12364132192              12364132192

现在从这三个表中，我需要仅从我们拥有的任何内容中获取creditcardID不匹配的表，表将始终存在于表中MasterCreditcardCreditcardIDChildcreditcard1Childcreditcard2MasterCreditcard

结果应该是表格应该是这样的

 45677232124
 78567723212
 23677232124
 45678944343

我的查询：

select 
      distinct(cc.CreditcardID) 
from 
      MasterCreditcard  CC  
inner JOIN 
      Childcreditcard1 c1 ON CC.CreditcardID <> c1.CreditcardID 
inner JOIN 
      Childcreditcard2 c2 ON CC.CreditcardID <> c2.CreditcardID  

我试过这样，但这给出CreditcardID了MasterCreditcard表中所有错误的结果

Answer 1

试试这可能对你有用

select distinct(cc.CreditcardID) from MasterCreditcard  CC  
left JOIN Childcreditcard1 c1 ON CC.CreditcardID =c1.CreditcardID  
left JOIN Childcreditcard2 c2 ON CC.CreditcardID =c2.CreditcardID   
where c1.CreditcardID  is null or c2.CreditcardID   is null

我的答案是基于这张图片，第二张图片左外连接案例