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MAXLIMIT data with zero observation

 
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pravinj

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Joined: 10 Jun 2008
Posts: 24
Location: india

PostPosted: Mon Mar 16, 2009 1:31 pm    Post subject: MAXLIMIT data with zero observation
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Hi,

I read a file which contains the totals f each category and the logic is to evaluate that when the totals are less than a particular value read from another file, it'll be writing the error details in another file. My question is here when the input file-totals with 0 observations is read, how the logic above will get executed? Will it be executed every time it evaluates against the null value?

Code:
DATA BMPCOUNT;                     
INFILE BMPCNT FIRSTOBS = 1 OBS = 1;
INPUT @001 TOTCNT 10.             
;                                 

DATA MAXLIMIT;                     
INFILE MAXLMT FIRSTOBS = 1 OBS = 1;
INPUT @001 MAX_COUNT 4.           
      @008 MAX_PERCENT 3.         
;                                 
DATA MAXCNT;                                       
  SET BMPCOUNT;                                     
  SET MAXLIMIT;                                     
  SET TABLE_NM;                                     
   HIGH_PERCENT = MAX_COUNT * ( MAX_PERCENT / 100 );
   H_PERCENT_RND = ROUND(HIGH_PERCENT);             
   IF TOTCNT > HIGH_PERCENT THEN                   
    FILE MAILRPT;                                 


I tested it with MAXLIMIT data with zero observation, but the above condition evaluates to false. But i felt that as the high_percent calculated will be null, and if it's evaluated with TOTCNT, the condition will be returning true! How does this work?
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Robert Sample

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Joined: 06 Jun 2008
Posts: 8117
Location: East Dubuque, Illinois, USA

PostPosted: Mon Mar 16, 2009 5:26 pm    Post subject:
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Quote:
But i felt that as the high_percent calculated will be null, and if it's evaluated with TOTCNT, the condition will be returning true!
If you actually print the values in MAXCNT after the 3 SET statements you may find the values are not what you believe them to be.
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