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i think the answer should be C. what are your opions?

data WORK.DATE_INFO;

     Day="01" ;

     Yr=1960 ;

     X=mdy(Day,01,Yr) ;

  run;

What is the value ofthe variable X?

     A. the numeric value 0

     B. the character value "01011960"

     C. a missing value due to syntax errors

     D. the step will not compile because ofthe character argument in the mdy function.

Answer: A

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关键词：Base Character function Variable argument character function because errors should

Should be A, the Character value will be converted to numeric values automatically and there will be a note in the SAS log.

hcydlee 发表于 2012-7-27 15:00
Should be A, the Character value will be converted to numeric values automatically and there will be ...

However, we should always consider this problem and avoid system conversion.

thanks a lot!
it is true. I just ran the code in SAS