How will schema design be affected by having the ability to use
nested relations? I have an intuition that it might not be that
much; that nesting is a *little* useful but not all that *much* useful.
However, I am concerned that I don't have a normal form to

Hey Everyone,
What's up? I am new around here ... Anyway, I am looking for a
surveillance camera and a night vision camera I found a site called
DVR:

In this article of mine, the believer will find incontestable
historic-archaeological support to his Faith, the undecided one will
perhaps be capable of making a decisive step forward to live the
"Blessed Hope", the atheist will get irritated at seeing his

Here's a possibly-interesting DML question.
I want to update multiple rows in a table, but
I only want to do so if I can do the update on
all of them. A small example:

Hi, I'm not sure if I'm posting in the appropriate group but here
goes...
I'm currently in the process of designing a new warehouse management
system from the ground up as our old one in MS Access is inadequate,

Am I correct in regarding MVCC as pretty much the state of the art
for relational implementation? (I know we hear things about TRM
but until there's more published it doesn't seem evaluable.)
Are there any difficulties associated with MVCC implementations

I posted a yesterday about help for a database I am working on. Well I
sat down and came up with some entities and attributes based on my
wishes and came up with the below. I'm going to list the criteria again
Here is the situation. I need to create a animal shelter database on

I have a requirement and I just can't figure out how to implement it
using Pick.
The thing is... I don't know anything about it.
I figure I must be able to implement it using an RDBMS, given that

sorry - crossposting (from sqlserver programming) as it's more likely
to be relevant here
I have a table which I have previously used for objects of a certain
class i.e.

"Bruno Desthuilliers" <onurb@xiludom.gro> wrote in message
news:44a2b543$0$6509$626a54ce@news.free.fr...

As far as I could observe, relational variables are repetitively
confused with their projections as tables.  On the last few years, I
have focused some efforts into searching mathematical tools to help
characterize more precisely relvars.

Can anyone advise how operations are treated when AND and OR are
combined?
eg
WHERE: Condition 1 > X AND Condition 2 < Y OR Condition 3 = Z

i have a entity 'device' and every 'device' has there own 'type' and
every 'type' has there specific attributes.
 first i let the table 'device' keep all common attributs of device
,but i find i can't keep the 'device's type attributes at least i found

Consider named views of binary operations on relations.
Given a relational operator "op" and relation variables A and B,
and a declaration of:
r = A op B

This is a real  2006 post:
"Let's say I have a table of users, and each user has a list of
categories.  I could store each user's categories as TEXT with
delimeters like "cat1|cat2|cat3"