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Trim Non-Alpha characters from string Expand / Collapse
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Posted Monday, July 19, 2010 11:32 PM


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Comments posted to this topic are about the item Trim Non-Alpha characters from string

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Post #955294
Posted Tuesday, July 20, 2010 7:47 AM


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Pretty cool.

Tom Garth
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Post #955576
Posted Tuesday, July 20, 2010 8:12 AM


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Very nice. Just so happens I was bemoaning having to write a 'strip non-numeric characters' function today. You probably saved me an hour! :D

Kate The Great
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Post #955611
Posted Tuesday, July 20, 2010 8:22 AM


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I did get an error applying to a nullable column. (LEN=0; Error was "TOP clause contains an invalid value.") Because I'm in a hurry I just threw a case statement around the function call but a clause in the function to work around that would be a nice enhancement.

Kate The Great
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Post #955619
Posted Tuesday, July 20, 2010 9:36 AM
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Thank you for this example.
If you do much data cleansing or string manipulation, keep in mind that you can implement regular expression functionality in SQL Server 2005 and above. It's easier than I thought it would be, assuming your DBA allows you to enable CLR integration.
This article lays it out very well:
http://justgeeks.blogspot.com/2008/08/adding-regular-expressions-regex-to-sql.html
Post #955700
Posted Thursday, January 27, 2011 9:12 AM


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Thanks for the script, I like they way you created the tally table on the fly lilke that, I never thought of doing that! Here is what I've been using to do the same thing, it's pretty easy to modify to include/exclude numerics, spaces, certain special characters etc... which is why I like it.


DECLARE @data VARCHAR(100)
SET @data = '!2131231Atif123123 234234Sheikh6546'
WHILE PATINDEX('%[^a-z ]%', @data) > 0
SET @data = STUFF(@data, PATINDEX('%[^a-z ]%', @data), 1, '')
SELECT
RTRIM(LTRIM(@data)) AS Data


Thanks again!


Adam Sottosanti
Post #1054654
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