On Mon, Apr 20, 2009 at 1:38 PM, <ad...@buskirkgraphics.com> wrote:
> Suggestion on faster solutions for extremely large database.
>
> $ledip['started'] = '2009-04-01 13:40:34'; Example time in DB
> $ledip['touchedlast'] = '2009-04-01 13:41:28'; Example time in DB
>
>
> date('i:s', strtotime($ledip['touchedlast']) -
> strtotime($ledip['started'])); // Not a desired solution because of its
> inability to go past the minute correctly I AM AWARE.
>
>
> or
>
> concat( truncate( hour( timediff($ledip['touchedlast'],$ledip['started']) )
> /24, 0 ) , " days ", hour( timediff($ledip['touchedlast'],$ledip['started'])
> ) %24, " hours ", minute( timediff($ledip['touchedlast'],$ledip['started'] )
> ) , " minutes ", second( timediff($ledip['touchedlast'],$ledip['started'] )
> ) , " seconds" ) as timeleft
>
>
> The results of concat truncate, allows me the flexibility or exacting time
> differences out past the minute. I am worried that the vastness of the
> database may cause me a server load or query timeframes that are undesirable
> as it grows even bigger.
> Suggestions?
>
> ********* PLEASE ....
> Do not reply to this email with your 9 million page thought of how to, or
> some custom function that you think is all that, I do not care.
> I am asking for load desired results NOT your take on my code…
>
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>
>
You are doing a lot of calculation on this combining both PHP and SQL code.
How many rows are you affecting with this query at one time?
I hate to say it, but this to me is just begging for a unix timestamps, then
you can simply deal with the seconds remaining on this counter.
--
Bastien
Cat, the other other white meat
