Controlling the Time Range of Data - The RANGE Statement

/*--------------------------------------------------------------

                    SAS Sample Library

       Name: datgs02.sas
Description: Example program from SAS/ETS User's Guide,
             The DATASOURCE Procedure

   Title: Controlling the Time Range of Data - The RANGE Statement
 Product: SAS/ETS Software
  System: ALL
    Keys: DATASOURCE  data extraction from various sources
   Procs: DATASOURCE
    Data: sasmisc: citiaf.dat (DATASOURCE database files)
   Notes: Read this before you run this sample.
          The database resides in the ets/sasmisc folder. You
          must copy the database to a writeable folder before
          using it. Then define your Windows system environment
          variable, DATASRC_DATA, to the path of your
          writeable folder containing
          the citiaf.dat file.
          To assign a fileref to the external file to be processed,
          use the following form of the filename statement:

filename citifile "%sysget(DATASRC_DATA)citiaf.dat" RECFM=F LRECL=80;
--------------------------------------------------------------*/

/*-- Controlling the Time Range of Data - The RANGE Statement --*/
filename citifile "%sysget(DATASRC_DATA)citiaf.dat" RECFM=F LRECL=80;
proc datasource filetype=dribasic infile=citifile
                interval=month  out=dataset;
   keep  exrjan exrsw exruk;
   range from 1985:9 to 1987:2;
run;

title1 'Printout of the OUT= Data Set';
proc print data=dataset;
run;