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What is best way to calculate age
Message
De
20/09/2006 13:25:11
 
 
À
20/09/2006 13:14:56
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Network:
Windows 2000 Server
Database:
Visual FoxPro
Divers
Thread ID:
01155605
Message ID:
01155655
Vues:
46
>>>We need totals of clients by age bracket. What is the best way to calculate the age? Right now, we are using:
>>>
>>>INT((DATE() - a.dob) / 365)
>>>
>>>But that doesn't take into consideration leap years (which could be significant for someone over 90 years old). Any suggestions? Should I just use:
>>>
>>>INT((DATE() - a.dob) / 365.25)
>>>
>>>Or is there a better (more accurate) way?
>>>
>>>Thanks,
>>>Doug
>>
>>if YEAR is enought:
>>
>>YEAR(DATE())-YEAR(a.dob)
>>
>
>
>Fabio, that doesn't quite work. It only works if you assume rounding. A person born say, November 1, 1975, is normally considered today (Sept. 20, 2006) to be 30 years old. but your calculation gives back 31.

I known it, but when you group it on year basis, the statistical difference is zero.
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