SELECT dbo.CMN_FmtPhone('1234567891011') Output: (123) 456-7891 Ext: 011 SELECT dbo.CMN_FmtPhone('1234567820') Output: (123) 456-7820
CREATE FUNCTION CMN_FmtPhone ( @PhoneNumber varchar(15) ) RETURNS varchar (15) AS BEGIN Declare @returnValue as Varchar(15) SELECT @returnValue = CASE WHEN LEN(LTRIM(RTRIM(@PhoneNumber))) = 10 THEN '(' + SUBSTRING(@PhoneNumber, 1, 3) + ')' + ' ' + SUBSTRING(@PhoneNumber, 4, 3) + '-' + SUBSTRING(@PhoneNumber, 7, 4) WHEN LEN(LTRIM(RTRIM(@PhoneNumber))) > 10 THEN '(' + SUBSTRING(@PhoneNumber, 1, 3) + ')' + ' ' + SUBSTRING(@PhoneNumber, 4, 3) + '-' + SUBSTRING(@PhoneNumber, 7, 4) + ' Ext: ' + SUBSTRING(@PhoneNumber, 11, 5) END RETURN @returnValue; END