Here is a MySQL stored procedure that I have used to format the difference
between two dates:
CREATE definer=`ro...@`127.0.0.1` FUNCTION `sp_maint_PeriodLength`(dt1
DATETIME, dt2 DATETIME) RETURNS char(128) CHARSET latin1
BEGIN
DECLARE yy, mm, d0, dd, hh, mi, ss, t1 BIGINT;
DECLARE t0 TIMESTAMP;
SET yy = TIMESTAMPDIFF(YEAR, dt1, dt2);
SET mm = TIMESTAMPDIFF(MONTH, dt1, dt2) MOD 12;
SET d0 = TIMESTAMPDIFF(DAY, dt1, dt2);
IF yy = 0 OR mm = 0 THEN
SET dd = 0;
ELSE
SET dd = d0 MOD (yy * mm);
END IF;
SET t0 = TIMESTAMPADD(DAY, d0, dt1);
SET t1 = TIME_TO_SEC(TIMEDIFF(dt2, t0));
SET hh = FLOOR(t1 / 3600);
SET mi = FLOOR(t1 / 60) - 60 * hh;
SET ss = t1 - 3600 * hh - 60 * mi;
RETURN CONCAT( yy, ' years ', mm, ' months ', dd, ' days ', hh, ' hours
', mi, ' mins ', ss, ' secs' );
END
Maybe this will help.
Thanks,
Randall Price
Senior Programmer Analyst
Virginia Tech
-----Original Message-----
From: Gavin Towey [mailto:gto...@ffn.com]
Sent: Friday, March 05, 2010 4:15 PM
To: Tompkins Neil; prabhat kumar
Cc: [MySQL]
Subject: RE: Displaying date/time
That's probably something best done in your presentation (app) layer.
If you must do this in mysql, then you'll probably want to write a stored
function.
-----Original Message-----
From: Tompkins Neil [mailto:neil.tompk...@googlemail.com]
Sent: Friday, March 05, 2010 10:27 AM
To: prabhat kumar
Cc: [MySQL]
Subject: Re: Displaying date/time
Hi
That is kind of what I'm looking for. However I'd like to be able to
display the difference between date 1 and date 2 like
1d 2h 29min ago
Thanks
Neil
On Fri, Mar 5, 2010 at 3:32 PM, prabhat kumar <aim.prab...@gmail.com> wrote:
> Might be this will help you:
> there is a table called message with 3 colums - id, pubdate and message;
> You can get all messages from the last 5 minutes with the following
> example;
>
> SELECT TIMESTAMPDIFF(MINUTE, pubdate, now()), id, message from message
> where (TIMESTAMPDIFF(MINUTE, pubdate, now()) < 5);
>
> Thanks,
>
>
> On Fri, Mar 5, 2010 at 8:19 PM, Tompkins Neil <
> neil.tompk...@googlemail.com> wrote:
>
>> Hi
>>
>> I have a number of rows which have Date and Time data in. I want to
>> display
>> in the following formats based on the systems current time
>>
>> e.g under 1 hour 24min ago
>> e.g under 1 day 16h 29min ago
>> e.g over 1 day 1d 2h 29min ago
>> e.g over 1 week 1w 4d 2h 29min ago
>>
>> How would this best be achieve using MySQL.
>>
>> Thanks,
>> Neil
>>
>
>
>
> --
> Best Regards,
>
> Prabhat Kumar
> MySQL DBA
> Datavail-India Mumbai
> Mobile : 91-9987681929
> www.datavail.com
>
> My Blog: http://adminlinux.blogspot.com
> My LinkedIn: http://www.linkedin.com/in/profileprabhat
>
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