Remove Special Characters from String and Convert to Multiple Columns by using ParseName Function

Problem:
Sometime we get the data in one column with some kind of delimiter( such as comma,pipe, space etc) and also this string contains some special characters such as (.,./,$,#,@ etc).
The current problem is related to the string that has space separator and some special characters. Our goal is to split this string into FirstName, MiddleName and Last Name.

Solutions:
--Create Test Table

Create table dbo.ColSplit ( FullName Varchar(300))
go
insert into dbo.ColSplit values ( 'CHARLES. ROSAMILIA.')
go
insert into dbo.ColSplit values ( 'CHARLES. .cc ROSAMILIA. @')
go
insert into dbo.ColSplit values ( 'CHARLES. HANS. ROSAMILIA /')
go
insert into dbo.ColSplit values ( 'CHARLES ROSAMILIA')
go

Select * from Dbo.ColSplit

--This function removes special characters from string. The code is available on below link

http://www.tainyan.com/codesnippets/entry-63/sql-function-to-remove-special-characters.html

CREATE FUNCTION [dbo].[ufn_RemoveSpecialChars]
(
    @Input VARCHAR(MAX)
)
RETURNS VARCHAR(MAX)
BEGIN
   
   DECLARE @Output VARCHAR(MAX  )
   
   IF (ISNULL(@Input,'')='')
      SET @Output = @Input
   ELSE
   BEGIN
   
    DECLARE @Len INT
    DECLARE @Counter INT
    DECLARE @CharCode INT
        
    SET @Output = ''
    SET @Len = LEN(@Input)
   
   SET @Counter = 1
   
       WHILE @Counter <= @Len
       BEGIN
          
          SET @CharCode = ASCII(SUBSTRING(@Input, @Counter, 1))
          IF @CharCode=32 OR @CharCode BETWEEN 48 and 57 OR @CharCode BETWEEN 65 AND 90 OR @CharCode BETWEEN 97 AND 122
             SET @Output = @Output + CHAR(@CharCode)
             
          SET @Counter = @Counter + 1
          
       END
         
   END
      
   RETURN @Output
   
END



--Final Query
--Used function to remove special characters.
--Used ParseName builtin function to split the FullName depending upon ''( space).
--Wrote Case Statement to adjust middle name to last name where there is no last name.

;WITH CTE
     AS (SELECT Reverse(Parsename(Replace(

The above query can be changed according to the requirement. We can also write a user function to split string string into multiple columns. Here we were required to split FirstName,MiddleName and LastName and that can be handled with built in function.