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Message Posted: Mon, 11 Apr 2005 @ 09:51:24 GMT


     
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Subj:   Re: Extracting piece of data from a string of text
 
From:   Allan Holmes

You can also extract the string if you don't know its length by determing the length of the field.

Ie

     cast(SUBSTRING(sub01.temp01 FROM POSITION(' ' IN sub01.temp01) + 1 FOR
     CHARACTER(sub01.temp01) - (POSITION(' ' IN sub01.temp01))) as int) as
     DerivedFieldName

I use this when extracting Stock figures where I concatenate transaction date & time & soh, then strip out the soh data. I also use it for extracting names, suburbs, post-codes etc etc. However, the down-side is, you can only use it if there is no trailing data



     
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