Calculate days till next birthday

Hi,
I'm building an aplication in with I need to calculate the number of days
till the persons next birthday. I already have an UDF that calculates the ag
e
given the birthdate and the current date, and I would like to be able to do
an UDF that calculates the number of days till next birthday to use it on a
computed field.Look at DATEDIFF system funtion in the BOL
"M?rcio Santos" <Mrcio Santos@.discussions.microsoft.com> wrote in message
news:F540944C-F830-44E1-AADB-A90F7E018E89@.microsoft.com...
> Hi,
> I'm building an aplication in with I need to calculate the number of days
> till the persons next birthday. I already have an UDF that calculates the
age
> given the birthdate and the current date, and I would like to be able to
do
> an UDF that calculates the number of days till next birthday to use it on
a
> computed field.
>|||I have, i've used it to build the other UDF I reffered. But this one isn't
thar simple. I have a php Script that solves this problem, it's something
like this:
"
$nextbirthday =
mktime(0,0,0,"09","12",date("Y"));
// if $nextbirtday is in the past, add 1 year to $nextbirthday
if ($nextbirthday<$nowdate) {
$nextbirthday=$nextbirthday+(60*60*24*36
5);
}
// calculate the remaining day's till my next birthday
$daycount=intval(($nextbirthday-$nowdate)/(60*60*24));
echo " My next birthday is over $daycount day's.";
"
Now I want to transform this into an UDF, to be able to use it on a computed
field.
"Uri Dimant" wrote:

> Look at DATEDIFF system funtion in the BOL
>
> "M?rcio Santos" <Mrcio Santos@.discussions.microsoft.com> wrote in message
> news:F540944C-F830-44E1-AADB-A90F7E018E89@.microsoft.com...
> age
> do
> a
>
>|||Hi
Did u try it this way:
DATEDIFF(d, getdate(), birthdate)
best Regards,
Chandra
http://chanduas.blogspot.com/
http://groups.msn.com/SQLResource/
---
"Márcio Santos" wrote:
[vbcol=seagreen]
> I have, i've used it to build the other UDF I reffered. But this one isn't
> thar simple. I have a php Script that solves this problem, it's something
> like this:
> "
> $nextbirthday =
> mktime(0,0,0,"09","12",date("Y"));
> // if $nextbirtday is in the past, add 1 year to $nextbirthday
> if ($nextbirthday<$nowdate) {
> $nextbirthday=$nextbirthday+(60*60*24*36
5);
> }
> // calculate the remaining day's till my next birthday
> $daycount=intval(($nextbirthday-$nowdate)/(60*60*24));
> echo " My next birthday is over $daycount day's.";
> "
> Now I want to transform this into an UDF, to be able to use it on a comput
ed
> field.
>
> "Uri Dimant" wrote:
>|||On Wed, 8 Jun 2005 03:46:02 -0700, "Mrcio Santos" <Mrcio
Santos@.discussions.microsoft.com> wrote:

>Hi,
>I'm building an aplication in with I need to calculate the number of days
>till the persons next birthday. I already have an UDF that calculates the a
ge
>given the birthdate and the current date, and I would like to be able to do
>an UDF that calculates the number of days till next birthday to use it on a
>computed field.
>
Hi Mrcio,
It doesn't look pretty and I have the feeling that there should be an
easier way, but this code will at least get the job done:
DECLARE @.BirthDay smalldatetime
SET @.BirthDay = 'yyyymmdd' -- Insert test data here
SELECT DATEDIFF(day,
CURRENT_TIMESTAMP,
DATEADD(year,
DATEDIFF(year, @.BirthDay, CURRENT_TIMESTAMP)
+ CASE WHEN DATEADD(year, DATEDIFF(year,
@.BirthDay, CURRENT_TIMESTAMP), @.BirthDay) < CURRENT_TIMESTAMP THEN 1
ELSE 0 END,
@.BirthDay))
Best, Hugo
--
(Remove _NO_ and _SPAM_ to get my e-mail address)|||Thx... it works perfectly...
"Hugo Kornelis" wrote:

> On Wed, 8 Jun 2005 03:46:02 -0700, "Márcio Santos" <Márcio
> Santos@.discussions.microsoft.com> wrote:
>
> Hi Márcio,
> It doesn't look pretty and I have the feeling that there should be an
> easier way, but this code will at least get the job done:
> DECLARE @.BirthDay smalldatetime
> SET @.BirthDay = 'yyyymmdd' -- Insert test data here
> SELECT DATEDIFF(day,
> CURRENT_TIMESTAMP,
> DATEADD(year,
> DATEDIFF(year, @.BirthDay, CURRENT_TIMESTAMP)
> + CASE WHEN DATEADD(year, DATEDIFF(year,
> @.BirthDay, CURRENT_TIMESTAMP), @.BirthDay) < CURRENT_TIMESTAMP THEN 1
> ELSE 0 END,
> @.BirthDay))
>
> Best, Hugo
> --
> (Remove _NO_ and _SPAM_ to get my e-mail address)
>