sql server - Sql concatenation not working with case statement in sql -


i want concatenate multiple rows single text string checking few conditions using case statement. query returns last value rather concatenating values.

my sql query below

declare @str varchar(1000) set @str = '' select @str = @str +       case when substring(value,charindex('|',value)+1,len(value)) <> ''           '$' +replace(value,'|',' - ')      else           '$' +isnull(replace(value,'|',''),'')       end + ', '  dbo.sometable            print @str

the common way row concatenation in sql server use for xml path

select @str = stuff((select case when substring(value,charindex('|',value)+1,len(value)) <> ''                            '$' +replace(value,'|',' - ')                           else '$' +isnull(replace(value,'|',''),'')                       end                @t xml path('')), 1, 1, '')

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