问如何在存储过程中调用此函数？

EN

    create FUNCTION [dbo].[fnSplitString] (@s varchar(512),@sep char(1)) 
RETURNS table 
AS 
RETURN ( 
    WITH Pieces(pn, start, stop) AS ( 
      SELECT 1, 1, CHARINDEX(@sep, @s) 
      UNION ALL 
      SELECT pn + 1, stop + 1, CHARINDEX(@sep, @s, stop + 1) 
      FROM Pieces 
      WHERE stop > 0 
    ) 
    SELECT pn, 
      SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 512 END) AS s 
    FROM Pieces 
  ) 

WHERE u.[Fleet] IN (SELECT [VALUE] FROM dbo.udf_GenerateVarcharTableFromStringList(@Fleets, ','))