Date:         Wed, 10 Mar 2010 10:23:35 -0500
Reply-To:     V M <v.malik@YAHOO.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         V M <v.malik@YAHOO.COM>
Subject:      Re: Check if a variable has any letter from A to Z. Is there a
              function for it? Thanks

Other way you could use verify function, something like;

if Verify(Answer, ' abcdefghijklmnopqrstuvwxyz') NE 0
  Then Flag=1;