Re: Temporal database - no end date
From: Marshall <marshall.spight_at_gmail.com>
Date: 20 Jan 2007 16:08:27 -0800
Message-ID: <1169338107.293008.46200_at_v45g2000cwv.googlegroups.com>
Date: 20 Jan 2007 16:08:27 -0800
Message-ID: <1169338107.293008.46200_at_v45g2000cwv.googlegroups.com>
On Jan 19, 2:04 pm, "DBMS_Plumber" <paul_geoffrey_br..._at_yahoo.com>
wrote:
> V.J. Kumar wrote:
> > Could you show with an example how the loss occurs ? You may be right,
> > but let's see.
>
> Suppose I have 5 things. 4 of them lasted for 1 'day' before they
> break.The other broke on the same 'day' it went out.
>
> What is the mean time to failure?
>
> Sum of 'time quanta' = 4.
> Number of things = 5.
>
> Mean time to failure = 0 time quanta.
>
> Pick any intuitive unit of 'time quanta', and you can construct an
> example where this problem arises.
Marshall Received on Sun Jan 21 2007 - 01:08:27 CET