Create the LIB1.INVENTORY data set. The DATA step creates a permanent SAS data set.

data lib1.inventry;
   length Dept $ 4 Item $ 6 Season $ 6 Year 4;
   input dept item season year @@;
   datalines;
3070 20410  spring 2006 3070 20411  spring 2007
3070 20412  spring 2007 3070 20413  spring 2007
3070 20414  spring 2006 3070 20416  spring 2005
3071 20500  spring 2006 3071 20501  spring 2005
3071 20502  spring 2006 3071 20503  spring 2006
3071 20505  spring 2005 3071 20506  spring 2005
3071 20507  spring 2004 3071 20424  spring 2006
;