Question49:ThefollowingSASprogramissubmitted:

datawork.sets;

dountil(prodgt6);

prod+1;

end;

run;

WhatisthevalueofthevariablePRODintheoutputdataset?

1.6

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CorrectAnswer:2

Becauseofprod+1statement,SAScompilerwillassumearetainprod0;statement.

Firstloop=>prod=1=>(1gt6)=>false,loopcontinues

Secondloop=>prod=2=>(2gt6)=>false,loopcontinues

.....

lastloop=>prod=7=>(7gt6)=>true,dountilloopexitsandpdvwritesprodvalueof7tooutputdataset.

Syntax

DOUNTIL(expression);

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