/*  C07S2D01.sas */

options NOERRORABEND;
	
proc sort data = ia.Schedule out = shcedule;
		by FlightNumber ScheduledDate;
run;

proc print data = schedule;
		title 'Schedule for International Airlines';
run;

options ERRORABEND;

proc sort data = ia.Schedule out = shcedule;
		by FlightNumber ScheduledDate;
run;

proc print data=schedule;
		title 'Schedule for International Airlines';
run;