获取SQL Server 2012中无法绑定多部分标识符错误

Question

我在执行查询后出现此错误。两个表都有一列ID。我使用Microsoft SQL Server 2012

消息4104，级别16，状态1，行
多部分标识符 “CDATA.ID” 无法绑定。

代码：

INSERT INTO CDATA(Name, Mobile, Email, [Address], [Date]) 
    SELECT Name, Mobile, Email, [Address], [Date] 
    FROM CustomerData 
    WHERE CustomerData.ID != CDATA.[ID] 

Answer 1

要检查是否战绩表已经存在，你可以使用NOT EXISTS：

INSERT INTO CDATA(Name, Mobile, Email, [Address], [Date]) 
SELECT Name, Mobile, Email, [Address], [Date] 
FROM CustomerData 
WHERE NOT EXISTS (SELECT 1 FROM CData WHERE CustomerData.ID = CDATA.[ID]); 

或者EXCEPT：

INSERT INTO CDATA(Name, Mobile, Email, [Address], [Date]) 
SELECT Name, Mobile, Email, [Address], [Date] 
FROM CustomerData 
EXCEPT 
SELECT Name, Mobile, Email, [Address], [Date] 
FROM CDATA;