DSXchange

Posted: **Wed Mar 18, 2009 9:00 am**

I have a column with apha, alphanumeric and numeric values, I want to pass only numeric values and want to make apha & aplhanumeric values empty.

I tried using

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if len(convert("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefhijklmnopqrstuvwxyz","",col)) = 0 then "" else col

but its not working for alphanumeric values.

Then I tried

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If index("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefhijklmnopqrstuvwxyz",col,1) > 0 then "" else col

this one is making numeric values empty.

Can any help me here and let me know if I am doin anything wrong in the above code.

Thanks in advance.

Posted: **Wed Mar 18, 2009 9:12 am**

you have the Num function. It returns 1 if it's a number.

Posted: **Wed Mar 18, 2009 10:43 am**

Well, this is kind of hokey, but should work (I'm pulling this off the top of my head and have not tested it - so make sure you do that):

Create a routine something like this:

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Function RemoveLetters(Arg1)

Text = Arg1
Ans = ""

LC = LEN(Text)

For i=1 to LC
   Letter = Text[i,1]
   Tst = Num(Letter)
   if Tst = 0
   then
      Ans := Letter
   end
Next i

RETURN (Ans)

This isn't very elegant and I'm sure someone with more experience than me with coding could do it better, but I think it will work.

Good luck!

Posted: **Wed Mar 18, 2009 10:54 am**

I used Num() and it gave me the result I want.

thanks bart12872 and jdmiceli.

DSXchange

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Data Issue