Re: [SQL] time intervals

> I have two fields, timein & timeout, both defined as type "time".  how can 
> i get the difference between the two??  i am connecting to postgres through 
> access97 and trying to run a simple query to show me timeout, timein, and 
> timeout-timein, but the calculation is returning an error.

In SQL you can do a DATEDIFF...I'm not in front of postgresql so am not
sure if it supports this.

Syntax is

select datediff (day, mydate, 'Jan 10 1999'
from table

If mydate = Jan 9, then the result is one. I think datediff accepts
datetime, so if you specify it properly (i.e. '1 Jan 1999 10:05") then
you'll get the right answers. Just change day to whatever you need.

Regards,

Mark.
--
Mark Jewiss
Knowledge Matters Limited