Function to Split Multi-valued Parameters

How to split a comma seperated value?
Many times we need to write T-SQL statements to split a comma seperated value, however string is not necessarily to be comma seperated, it can be seperated by any delimiter e.g. comma (,), @, &, ; etc.
How to use Multi-valued Parameters of SSRS report in a Stored procedures?One more question comes around, how to use a multi valued parameter of SSRS report in a Stored Procedure to filter report data? I am sure you can't use a multi valued parameter directly in T-SQL code without spliting multiple values, if you do so without spliting values, SPROC will throw an error.

To find the answer of above questions, you create a user defined function using below T-SQL code:

CREATE FUNCTION [dbo].[SplitMultivalue]
(
   @valueString [varchar](max),
   @Delimiter [varchar](1)
)
RETURNS @Table Table (Value [varchar](100))
BEGIN
   DECLARE @sTemp [varchar](max)
   SET @sTemp = ISNULL(@valueString ,'')
                + @Delimiter
   WHILE LEN(@sTemp) > 0
   BEGIN
      INSERT INTO @Table
      SELECT SubString(@sTemp,1,
             CharIndex(@Delimiter,@sTemp)-1)
     
      SET @sTemp = RIGHT(@sTemp,
        LEN(@sTemp)-CharIndex(@Delimiter,@sTemp))
   END
   RETURN
END
GO  
select 
* from [dbo].[SplitMultivalue]('venkat_b',_)