Date:         Fri, 31 May 2002 17:23:58 -0400
Reply-To:     Zhonghe Li <zli@HSPH.HARVARD.EDU>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Zhonghe Li <zli@HSPH.HARVARD.EDU>
Subject:      first.id
Content-Type: multipart/alternative;

Hi,

I am trying to keep only the first.id row using Proc sql;  It seems that Sql does not recognize 
for example

where first.id

Can you tell me whether it is true?  Is there any other way or shall I use Proc sort, and Keep first.id to achieve it.

Thank you.

Elena Li

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