Date:         Wed, 10 Oct 2001 11:24:07 -0600
Reply-To:     Jack Hamilton <JackHamilton@FIRSTHEALTH.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Jack Hamilton <JackHamilton@FIRSTHEALTH.COM>
Subject:      Re: Merge w/o sort first
Comments: To: Ben_Kentzer@AMP.COM.AU
Content-Type: text/plain; charset=us-ascii

"Ben Kentzer" <Ben_Kentzer@AMP.COM.AU> wrote:

>One interesting point - if you have a sort followed by a data step, the data
>step will remove the "sorted by". This can be re-introduced by using a by
>statement on the data step.

Not exactly.  A BY statement will verify that the data set is sorted.  You would use the SORTEDBY= data set option to tell SAS that a data set is already sorted.


data x (sortedby=a b c);

   set y;
      by a b c;

run;






--
JackHamilton@FirstHealth.com
Development Manager, Technical Group
METRICS Department, First Health
West Sacramento, California USA