vb.org Archive - Average Age

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- - Average Age (https://vborg.vbsupport.ru/showthread.php?t=33554)

pgowder

12-27-2001 05:36 PM

I'd like to compute the average age of my users for statistical information.

Any ideas on how to write this query?

Admin

12-27-2001 06:57 PM

The query:

Code:

SELECT YEAR(NOW())-AVG(YEAR(birthday)) AS avgage FROM user;

You might want to round() it later, or you can do it directly in the query using MySQL's ROUND() function, for example:

Code:

SELECT [high]ROUND([/high]YEAR(NOW())-AVG(YEAR(birthday))[high],2)[/high] AS avgage FROM user;

will round it to 2 decimal points.

pgowder

12-27-2001 07:48 PM

How can I eliminate the ones that didn't input a year?

Psychdrone

12-27-2001 08:35 PM

wow sweet!

Where would I put this code and where would I recieve the results!

FWC	12-27-2001 08:48 PM

[QUOTE]Originally posted by pgowder
How can I eliminate the ones that didn't input a year?

pgowder

12-27-2001 11:36 PM

Here is what I tried:

[QUOTE]SELECT YEAR(NOW())-AVG(YEAR(birthday)) AS avgage
WHERE birthday != 0000-00-00 FROM user

FWC	12-28-2001 12:28 AM

After FROM user:

Code:

SELECT YEAR(NOW())-AVG(YEAR(birthday)) AS avgage FROM user WHERE birthday != 0000-00-00

That doesn't error, but I got a strange result. My average user is 216 years old. :)

I think it may be because we are excluding the the unset year cells but the total rows aren't changing when the average is calculated.

Psychdrone

12-28-2001 02:20 AM

could someone answer me please!

Thanks!

Freddie Bingham

12-28-2001 02:23 AM

Code:

SELECT YEAR(NOW())-AVG(YEAR(birthday)) AS avgage FROM user WHERE YEAR(birthday) <> 0

I wasn't aware of the YEAR() function, I will have to check that out.

FWC	12-28-2001 02:58 AM

[QUOTE]Originally posted by freddie

Code:

SELECT YEAR(NOW())-AVG(YEAR(birthday)) AS avgage FROM user WHERE YEAR(birthday) <> 0

I wasn't aware of the YEAR() function, I will have to check that out.

pgowder

12-28-2001 11:19 AM

That works, thanks guys!

Admin

12-28-2001 11:22 AM

Don't I rock as well? :(

Freddie Bingham

12-28-2001 01:23 PM

NO, only I do!

Lesane

12-28-2001 03:23 PM

hmmm......this is my result: Array :confused:

Admin

12-28-2001 04:27 PM

[QUOTE]Originally posted by freddie
NO, only I do!

djr	12-28-2001 04:49 PM

whoa, my users are old :-) (32.3151 average)

- djr

oops, accidentaly clicked 'new thread' instead of 'new reply'.
Please move this to https://vborg.vbsupport.ru/showthrea...threadid=33554

thanks and sorry

- djr

Lesane

12-28-2001 04:54 PM

Aight, Thanks Firefly

FWC	12-28-2001 04:54 PM

[QUOTE]Originally posted by FireFly
Don't I rock as well? :(

Freddie Bingham

12-28-2001 05:08 PM

[QUOTE]Originally posted by FWC
Yeah, but I tell you and Bira "you rock" all the time. :)

I don't get as many chances with Freddie. :)

FWC	12-28-2001 05:15 PM

[QUOTE]Originally posted by freddie
No need. I will get enough of that when v3 is released ;) Then that will quickly be followed by "you suck, why did you change that???".

Psychdrone

12-29-2001 02:08 AM

you all rock! :rolleyes:

Could someone help me out with my question please!

Lesane

12-29-2001 07:13 AM

Psychdrone, add this in your index.php:

PHP Code:


		
			
// average age

$result=$DB_site->query_first("SELECT YEAR(NOW())-AVG(YEAR(birthday)) AS avgage FROM user WHERE YEAR(birthday) <> 0");

$age=$result['avgage'];

And put $age in your forumhome template

merk	12-31-2001 04:35 AM

[QUOTE]Originally posted by freddie
No need. I will get enough of that when v3 is released ;) Then that will quickly be followed by "you suck, why did you change that???".

DannyITR

03-29-2004 02:37 PM

I get Null as an answer. Does this work for VB gold?

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