Exercises and Projects for The Little SAS Book, Fifth Edition

CHAPTER 6

Modifying and Combining SAS Data Sets

Multiple Choice

Short Answer

Programming Exercises

Multiple Choice

  1.   Which DATA step will not overwrite a temporary SAS data set called TOYS?

a.   DATA WORK.toys; SET WORK.toys; RUN;

b.   DATA 'c:\MySASLib\toys'; SET 'c:\MySASLib\toys'; RUN;

c.   DATA toys; SET toys; RUN;

d.   None of the above

  2.   Which statement is required when interleaving data sets but not when stacking data sets?

a.   SET

b.   BY

c.   MERGE

d.   UPDATE

  3.   Suppose the SAS data sets called ONE and TWO contain the following data. How many observations will be in the resulting SAS data set called FIRST?

ONE

ID	Date
123	12/31/2013
456	09/15/2014

TWO

ID	Date
123	05/04/2014
123	06/22/2014
333	01/09/2014 ...