• Subject: Re[2]: Substring in SQL update
  • From: Buck Calabro <mcalabro@xxxxxxxxxxxx>
  • Date: Tue, 18 Nov 1997 16:02:49 -0500

>>Is there a way to use substr when updating with SQL (at v2r3m0 -- we're
>>a tad behind the times yet)?  The manual tells how to select using
>>substr, but not to update or set..
>
>Yes of course, you can use the SQL Substr-Function in every UPDATE 
>statement, in the SET-clause on the _RIGHT_ side of the equal sign. That
>means, that you can move the Substr to any string field, but you could NOT
>use the Substr as the target (like in RPG/IV)!

We had a situation where we needed to replace the first 3 characters of a
field and leave the rest alone.

The field typically looks like this:
                        WI8N7F3A 
                        800N6F3  
        Want to exchange the 800 with WI8 and leave the rest of
        the field intact: Replace 800xxxxx with WI8xxxxx.

update ccextfp set ftrcod='WI8' concat substr (ftrcod,4,5)

You could follow a similar pattern if your firld is in the middle:

update ccextfp set ftrcod=substr(ftrcod,1,2) concat 
   '8' concat substr (ftrcod,4,5)

would replace the 3rd column and leave the rest intact.

hth
Buck Calabro
Commsoft

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