Date:         Sat, 20 Feb 2010 20:55:54 -0500
Reply-To:     Jinto83 <jinto83@SINA.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Jinto83 <jinto83@SINA.COM>
Organization: Netfront http://www.netfront.net/
Subject:      dupflag in merge
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset="iso-8859-1"

Is there an option in merge that would indicate a duplicate exists in the by group?

Eg.
data outputdata;
merge fileA fileB;
by VarX VarY;
duplicate_flag=1 if exists duplicate within VarX VarY group;

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