I have an Access database with two tables "Main" and "Rafflenumbers", also
a main form (for names etc) and a subform (for numbers assigned). I put an
unbound control on the Main form which I want to have updated with the last
number added to the control on the subform. I used ...

Hi everyone;
                 I want to write a report about database model, and i
plan to write 3 models which are Network Model,Hierarchical Model, and
relational model.

I have read the literature on fuzzy/approximate search for strings
keys in large databases, but I could not find a clear answer on what
is the best that has been achieved thus far in terms of the cost of
search (regardless of cost of building any index).

Suppose there are N parties. Each party has R records, each of which
has D dimensions.
For example, N=3, parties are P1, P2, P3.
D=4, dimensions are named as (A,B,C,D).

I am currently designing my first database. The complexity is
manageable. However in the future I might want to expand the domain to
time-series and as far as I understand time-series and databases don't
go well together. How does this relate to the object-relational

Does the Unique Name Assumption apply only to individuals, or does it apply
also to relations?  Under an interpretation where constant symbols are
mapped to individuals and predicate symbols are mapped to relations, if a
and b are constant symbols and P and Q predicate symbols ...

What the hell is objectivied relational mapping? Can anyone point me to
references? I've Googled, but nothing. My client insists that  the db act as
an object broker. What does this mean?
Thanks in advance...

I was just looking at Codd's RM 2 book again (the rather short chapter
on views from acm.org) and it seemed to me that what he wrote took it as
essential that a view must always equal the expression that defines the
view.  If so, does this in effect constitute a kind of indirect

I'm supervising the development of a database system with a web interface.
I had built the DB backend using postgresql.  The guy we hired to take over
the project from me---I have non-IT duties to attend to---for various
reasons decided to switch to MySQL and created his own ...

I am between those books on data modelling, can anyone suggest which one should I prefer?
Database Modeling and Design: Logical Design
http://www.amazon.com/Database-Modeling-Design-Kaufmann-Management/dp/0126853525/
Data Modeling Theory and Practice

Have you heard of Postel's Law?
   "Be liberal in what you accept, and conservative in what you
send."
I can imagine it being applied to many things.  Eg file formats, APIs,