Sql查询到单词的完全匹配

Question

我的查询就像这样

declare @searchWord varchar(100)
set @searchWord = 'carb9' 
declare @tableWord varchar(100)
set @tableWord = 'Racing Carb9 uretor'
--set @tableWord =  'carb9'

select 1 
where  @tableWord like '%[^a-z0-9]' + @searchWord + '[^a-z0-9]%'
or @tableWord like @searchWord + '[^a-z0-9]%'
or @tableWord like '%[^a-z0-9]' + @searchWord 

当@tableWord是'Racing Carb9 uretor'时，此查询有效但@tableword只是'carb9'时不起作用。它应该在两种情况下都有效。我做错了什么？

Answer 1

您可以在查询中添加条件@tableWord = @searchWord。目前，没有任何条件可以在这种情况下恢复原状

declare @searchWord varchar(100)
set @searchWord = 'carb9' 
declare @tableWord varchar(100)
set @tableWord = 'Racing Carb9 uretor'
--set @tableWord =  'carb9'

select 1 
where  @tableWord like '%[^a-z0-9]' + @searchWord + '[^a-z0-9]%'
or @tableWord like @searchWord + '[^a-z0-9]%'
or @tableWord like '%[^a-z0-9]' + @searchWord 
or @tableWord = @searchWord 

Answer 2

@ tableWord ='carb9'将不匹配where子句的任何模式，