From: Jan Wieck <janwieck@yahoo.com>
Message-Id: <200112211229.fBLCTvD01601@saturn.jw.home>
Subject: Re: NULL values or not?
In-Reply-To: <Pine.LNX.4.21.0112211045420.15695-100000@valdez.netg.se> from
	Archibald Zimonyi at "Dec 21, 2001 10:53:38 am"
To: Archibald Zimonyi <archie@netg.se>
Date: Fri, 21 Dec 2001 07:29:56 -0500 (EST)
CC: pgsql-sql@postgresql.org
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

Archibald Zimonyi wrote:
>
> Hi there,
>
> I have a question about NULL values. Lets say that we have a world with
> the following info:
>
> FirstName
> LastName
> PhoneNumber
>
>
> Everyone has to have a FirstName and LastName but not everyone has to have
> a PhoneNumber.

    I  don't  know  of any particular, but I can imagine cultures
    where people don't have first or last names. For sure alot of
    people  on this earth don't have a mailing address that'd fit
    into the "usual" schema. Don't make the schema too  scattered
    just  to  avoid  NULLs.  Wether  you like them or not doesn't
    matter, use them where they are handy.


Jan

--

#======================================================================#
# It's easier to get forgiveness for being wrong than for being right. #
# Let's break this rule - forgive me.                                  #
#================================================== JanWieck@Yahoo.com #


_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com