Re: Database up longer that host?

On Mon, 2 Dec 2002, Stephane Faroult wrote:

> Stephen Andert wrote:
> >
> > I use a script named db_uptime.sql (I think I got it from the list here)
> > to calculate how long the database has been up. The output compares
> > nicely to the unix uptime command.
>
> I hope that the query doesn't come from the list, because it is
> wrong. The error is to apply floor() before multiplying by 24 or 60 -
> you have tremendous rounding errors.
> My own database has not been up long enough to be 100% sure about it but
> I believe the following to be correct :

Hi:

    Neither of the scripts works for me. Try this?

select

    'Host Name : '||host_name|| chr(10)||
    'Instance Name : '||instance_name|| chr(10)||
    'Uptime : '     ||floor(xx)||'days '
                    || floor( 24 * (xx - floor(xx)) ) || 'hours '
                    || round( 60 * (24 * xx - floor(24 * xx))) || 'minutes '
    from (
             select host_name,instance_name ,(sysdate-STARTUP_TIME) xx
             from v$instance
         )

Meg Crocker

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