Keep and Drop

  specify variables */

data temp;

input q1 q3 q4 q2;

cards;

1 2 3 4

5 6 7 8

2 3 4 5

6 7 8 9

;

run;

data temp2(keep=q1-q3);

set temp;

run;

2nd way */

data temp;

set sashelp.cars;

run;

data temp2(keep=origin–mpg_city);

set temp;

run;