/*  C05S2D01.sas */

/* PROC CONTENTS on "before" data set: */
libname ia 'c:\workshop\winsas\effi';

proc contents data = ia.Sales199901;
run;

/* LENGTH statement in DATA step: */

data sales199901;
  length ActualCapacityFirstClass   
            ActualCapacityBusiness
	          ActualCapacityEconomy
	          ActualCapacityTotal
	          SalesPassengersFirstClass
            SalesPassengersBusiness
	          SalesPassengersEconomy 3
 	          ActualCapacityCargo
	          SalesCargoWeight 4
	          SalesRevenueFirstClass
	          SalesRevenueBusiness
	          SalesRevenueEconomy
	          SalesRevenueCargo 5;
  set ia.Sales199901;
run;

/* PROC CONTENTS on "after" data set: */

proc contents data = Sales199901;
run;