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分享select left(test,1) from 表select test from Table where test=1??
CREATE function f_hb(@id varchar(100))
returns varchar(1000)
as
begin declare @str varchar(1000)
set @str=''
select @str=@str+','+cast(UserName as varchar) from UserInfo
where charindex(','+cast(UserID as varchar)+',',','+@id+',')>0
return stuff(@str,1,1,'')
end
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO