Date:         Sat, 15 Oct 2005 13:37:42 -0400
Reply-To:     "Howard Schreier <hs AT dc-sug DOT org>" <nospam@HOWLES.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Howard Schreier <hs AT dc-sug DOT org>" <nospam@HOWLES.COM>
Subject:      Re: working on data set

Actually, it can be simplified to

   data work.test;
   if _n_=1 and eof then output;
   set work.class end=eof;
   output;
   run;

On Thu, 13 Oct 2005 14:06:43 -0700, data _null_; <datanull@GMAIL.COM> wrote:

>Perhaps this program is close to what you want.  If the data set
>work.class has zero observations the second data step writes one obs.
>with all missing values.  If work.class has greater than zero
>observations the data step copies work.class to work.test.
>
>data work.class;
>   set sashelp.class;
>   stop; /* remove this statement to test with GT 0 obs */
>   run;
>
>data work.test;
>   if _n_=1 and eof then output;
>   do while(not eof);
>      set work.class end=eof;
>      output;
>      end;
>   stop;
>   run;
>proc print;
>   run;