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How to cleanse a string from undesired characters?

The following function will only keep the characters included in the @OutputRange:

-- T-SQL create user-defined function (UDF) - scalar-valued function

USE AdventureWorks2008;

GO

CREATE FUNCTION fnStringCleanser (@Input varchar(2048), @OutputRange char(10))

RETURNS varchar(2048)

AS

BEGIN

  WHILE PATINDEX('%[^'+@OutputRange+']%', @Input) > 0

  BEGIN

    SET @Input = STUFF(@Input, PATINDEX('%[^'+@OutputRange+']%', @Input), 1, '')

  END

RETURN @Input

END

GO

 

-- Strip out non-numeric characters

SELECT dbo.fnStringCleanser('124-44.45634-','0-9')

GO

-- 1244445634

 

Exam Prep 70-461
Exam 70-461