By admin | August 21, 2009

SAS Certified Adv Programmer 50 Questions (44)

Which one of the following statements is true?

a. A WHERE statement can select observations only from SAS data sets.
b. Efficiency is affected by the placement of the WHERE statement in the DATA step.
c. The FIRSTOBS= and OBS= data set options are never allowed in a step with a WHERE expression.
d. There is a significant efficiency difference between a WHERE statement and a WHERE= data set option in the input data set.

One comment | Add One

  1. admin - 08/21/2009 at 1:13 pm

    A

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