This thread concerns the relationship between data objects
and program objects and the model used to conceptualise
the totality of relationships within and between the objects.
Cursory study of the ecology of all computer database systems

This is a fairly interesting link:
http://news.bbc.co.uk/2/hi/business/4167633.stm
The gist of it is that people have a lot of info stored in email, so it is a
de-facto database, if not an intended or discplined one.

In the following tabulation we list a number of different
roles and players that would normally be associated with
the database systems environment at any organisation.
Provision has been made for proponents of the (Date)

SIGMOD Record made a special issue, now IEEE Data Eng Bul follows the
suit. Why suddenly this is a hot topic? Should I quit my job
immediately and join cool sensor network startup (BTW, are there any
around)?

How to show:
cl(X) - function's clouser of X set
cl(cl(X)) = cl(X)

I have a database that tracks players for children's sports clubs. I have
included representative DDL for this database at the end of this post.
A single instance of this database supports multiple clubs. I would like to
add support for letting each club define and store custom ...

I'd like to know if "composite attributes" is the best terminology or
if there are better terms for logical data modeling in a scenario such
as the following.
The current model has a relation Person with an attribute Phone.  Phone

I really am a thicky and I cannot seem to find any relevant or helpful
information that will let me answer this question.
I am looking for some information or links to documents that will
describe the purpose of a database management system and the elements

What's the best method to use in a VB CGI access a MySQL DB for a high
volume web site?
A little history:
A couple of years ago I wrote a VB CGI that retrieves data (a product

Following script demos XDb3's UPDATE command where the general syntax
is "UPDATE x > y". In the example below, John, Mary and Bob's colors
are updated. Suggestions to improve the syntax appreciated.
// Create person and color types.

Hello, I have a problem because I am trying to find results from a
select statement, where the datas from the first table are the ones
that are NOT included in the second tables.
I have a table containing the list of known users: users_list

I'm curious about the terms used to describe extended properties of a column
definition.
In this particular instance, we are flagging that some columns contain the
value of a URL.  The UI code will see this and convert the values to

I want to start an interesting topic about the DB design behind gmail:
Since the mail box is 1G, there must be a cluster of servers provides
gmail service. One server, suppose it has 500G hard drive, may support
500 persons.  How do you think google design DB? 500 tables for each

A little bit a surprising news on the SQL standards committee.  Does anyone
know the background of and impetus behind this development?
----- Original Message -----
From: "Serge Rielau" <srielau@ca.ibm.com>

A client with which I'm working has a dictum that "thou shalt not
manufacture data"; which means we are forced to pull in bad data
against all sane advice to the contrary.
Can anyone point me to an author who can show how to go about