Question

UPDATE UserListColumnData 
set  UserListColumnValue = (case when Contains(ProductDetailObjects.InnerText, **ProductDetailObjects**.AdminInnerText) then 
'Condition True'Else 'Condition False' End)
FROM         VariableDataObjectMaping INNER JOIN  
                      UserListColumnData ON VariableDataObjectMaping.UserListColumnID = UserListColumnData.UserListColumnID INNER JOIN                    
                      UserListColumns ON UserListColumnData.UserListColumnID=UserListColumns.UserListColumnID INNER JOIN                       
                      ProductDetailObjects ON VariableDataObjectMaping.ObjectId = ProductDetailObjects.ObjectID INNER JOIN  
                      ProductDetail ON ProductDetailObjects.ProductDetailID = ProductDetail.ProductDetailID INNER JOIN  
                      Products ON ProductDetail.ProductID = Products.ProductID  
WHERE     (Products.ProductID = 275)

编译后给出以下错误。

Msg 102, Level 15, State 1, Line 2
Incorrect syntax near 'ProductDetailObjects'.

但是当我在包含函数中写任何字符串时，它就像。

UPDATE UserListColumnData 
set  UserListColumnValue = (case when Contains(ProductDetailObjects.InnerText, 'aab') then 
'Condition True'Else 'Condition False' End)
FROM         VariableDataObjectMaping INNER JOIN  
                      UserListColumnData ON VariableDataObjectMaping.UserListColumnID = UserListColumnData.UserListColumnID INNER JOIN                    
                      UserListColumns ON UserListColumnData.UserListColumnID=UserListColumns.UserListColumnID INNER JOIN                       
                      ProductDetailObjects ON VariableDataObjectMaping.ObjectId = ProductDetailObjects.ObjectID INNER JOIN  
                      ProductDetail ON ProductDetailObjects.ProductDetailID = ProductDetail.ProductDetailID INNER JOIN  
                      Products ON ProductDetail.ProductID = Products.ProductID  
WHERE     (Products.ProductID = 275)

为什么它不使用字符串列名（ProductDetailObjects.AdminInnerText ????）

Answer 1

您只能在CONTAINS中使用常量作为搜索查询。

Answer 2

在ELSE之前添加空格

'Condition True'Else

编辑：

像这样更新：

CASE 
      WHEN ProductDetailObjects.InnerText 
      LIKE '%' + ProductDetailObjects.AdminInnerText + '%'       
      THEN  'Condition True'
      ELSE 'Condition False' 
END

Answer 3

可能是这样的：

'Condition True'Else 'Condition False' End)
                ^--- missing a space here

Answer 4

您不能将字段名称用作CONTAINS的第二个参数，只能使用文字字符串或变量;它旨在查找第一个参数中列的所有值的特定搜索子句。

这个SQL查询有什么问题？

4 个答案: