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T-SQ: Extract Only Letters from an Alphanumeric String

Posted on 2014-01-30
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Last Modified: 2014-01-31
Hello:

I have a field called UOMSCHDL that contains alphanumeric characters.  The following represents examples of data returned for this field:  2YD, LB, EA, EA2, PKG, RL, CS0.

I want to return just the alpha and not the numeric.  Is there a simple means of extracting just the letters from a string containing both letters and numbers?

Thanks!

TBSupport
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Question by:TBSupport
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3 Comments
 
LVL 16

Expert Comment

by:Surendra Nath
ID: 39821006
check this out

DECLARE @T VARCHAR(1000)
DECLARE @AlphaWithCommas VARCHAR(1000)
DECLARE @AlphaWithOutCommas VARCHAR(1000)
SET @T = '2YD, LB, EA, EA2, PKG, RL, CS0'
SELECT @AlphaWithCommas = REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(@T,'1',''),'2',''),'3',''),'4',''),'5',''),'6',''),'7',''),'8',''),'9',''),'0','')
select @AlphaWithCommas
--Remove Commas as well
select @AlphaWithOutCommas = REPLACE(@AlphaWithCommas,',','')
select @AlphaWithOutCommas

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Author Comment

by:TBSupport
ID: 39822525
Thanks, Surendra!  

But, there's not a way of doing this without having to create a program declaring variables?

TBSupport
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Accepted Solution

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Surendra Nath earned 500 total points
ID: 39822539
I just declared variables here for convinience and to show that it works.

You can just take the complete replace statement below and apply it on a column or a variable ....

REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(<your Column or Variable>,'1',''),'2',''),'3',''),'4',''),'5',''),'6',''),'7',''),'8',''),'9',''),'0','')

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but if you are looking for some function from microsoft, then I dont there exists one for this purpose.
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