CREATE FUNCTION Inffkfrom(@tbID  INT,
                          @colID SMALLINT)
returns VARCHAR(2000)
AS
  BEGIN
      DECLARE @r VARCHAR(2000),
              @a VARCHAR(200)

      SELECT @r = '',
             @a = ''

      DECLARE cs CURSOR FOR
        SELECT FKfrom=CONVERT(VARCHAR(200), Object_name(rkeyid)+'.'+r.[name])
        FROM   sysforeignkeys c
               JOIN syscolumns f
                 ON c.fkeyid = f.[id]
                    AND c.fkey = f.colID
               JOIN syscolumns r
                 ON c.rkeyid = r.[id]
                    AND c.rkey = r.colID
        WHERE  fkeyID = @tbID
               AND fkey = @colID
        ORDER  BY
          keyNo

      OPEN cs

      FETCH NEXT FROM cs INTO @a

      WHILE @@FETCH_STATUS = 0
        BEGIN
            SELECT @r = @r + CASE
                               WHEN Len(@r) > 0 THEN ', '
                               ELSE ''
                             END + @a

            FETCH NEXT FROM cs INTO @a
        END

      CLOSE cs

      DEALLOCATE cs

      RETURN( @r )
  END

GO