List: General Discussion « Previous MessageNext Message » From: Jason Pyeron Date: July 27 2005 4:40pm Subject: Re: Hour counts View as plain text
```mysql> select *,timediff(end,start) from foo;
+---------------------+---------------------+----+---------------------+
| start               | end                 | id | timediff(end,start) |
+---------------------+---------------------+----+---------------------+
| 2005-07-14 15:00:00 | 2005-07-14 17:30:00 |  1 | 02:30:00            |
| 2005-07-14 23:00:00 | 2005-07-15 01:30:00 |  2 | 02:30:00            |
| 2005-07-14 15:00:00 | 2005-07-15 02:30:00 |  3 | 11:30:00            |
| 2005-07-14 15:00:00 | 2005-07-14 16:00:00 |  4 | 01:00:00            |
+---------------------+---------------------+----+---------------------+

On Wed, 27 Jul 2005, [iso-8859-2] Gyurasits Zolt
> Hello All!
>
>
> I would like to calculate the hour counts from 2 'datetime'.
> Example:   2005-07-27 18:00 and 2005-07-27 19:30  => 1,5 hour
>
> I try this....  but not good!
>
> R1 : munkaido_end-munkaido_start  /simple substract/
> R2 : ROUND(ROUND((end-start)/10000)+
> (((end-start)/1000-(ROUND((end-start)/10000)*10))/6),1)  /good if is in one day/
> R3 : ROUND((end-start)/10000)-76  /-76 because from 14. to 15. I don't understand/
>
>
> start               end                  R1                R2          R3
> 07-14 15:00     07-14 17:30     23000           2.5         -74
> 07-14 23:00     07-15 01:30     783000         78.5         2
> 07-14 15:00     07-15 02:30     873000         87.5         11
> 07-14 15:00     07-14 16:00     10000           1             -75
>
>
>
> Tnx!
>

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