Dear colleagues, San Pablo - CEU University in collaboration with other five universities (Málaga, Politécnica de Madrid, País Vasco, Complutense,...

coss.eps@ceu.es

05-04-2008 04:48 PM
coss.eps@ceu.es

Hi, i'm the author of a simple open-source database engine. i'm currently adding recovery/logging, and i have some practical questions about...

Christoph Rupp

04-29-2008 12:31 PM
Brian Selzer

This is a common problem and a common solution is to have a table with integers from zero to some large number (32,767 is common) as described at...

Carl Federl

04-24-2008 05:59 AM
David Cressey

Hello guys, this one is for one of my assignments. I want explanations and hints only. I'm still confused with the concepts of candidate keys and...

noagbodjivictor@gmail.com

04-19-2008 09:45 PM
JOG

Hi am doing a project on hash join. implementation to be done on hasNext and getNext interface. hash join has 2 phases. partitioning phase and...

develop.attitude@gmail.com

04-16-2008 06:13 PM
develop.attitude@gmail.com

Apologies for cross-postings. Please send to interested colleagues and students -- CALL FOR PAPERS - Deadline for submissions (extension): 5 May...

natty2006@gmail.com

04-15-2008 10:56 AM
natty2006@gmail.com

How does one model behavior? It would seem to me that, since conveying behavior from one object to another rests on messages, and since messages...

David Cressey

04-10-2008 11:15 PM
Brian Selzer

Third CEU Summerschool on Advanced Statistics and Data Mining (June 30th-July 11th, 2008) Dear colleagues, San Pablo - CEU University in...

coss

04-07-2008 11:55 AM
coss

beginner in ER.. Need more practical works and scenarios please help. Thanks

sathyashrayan

04-07-2008 09:21 AM
Jason Lepack

On 4 Apr 2008 13:24:56 GMT, Stefan Ram wrote: Which code is meant here? One necessary property of specification is verifiability of...

David Cressey

04-06-2008 01:34 PM
paul c

In the early days of the relational model, the words *intention* and "extension* were used respectively to mean *query* and *response*. That is, an...

Rob

04-05-2008 06:56 PM
paul c

Hi all, I'm researching two-way conversion methods available for converting between the constructs in the relational data model (i.e.,...

Ehsan Akhgari

04-04-2008 03:37 AM
Ehsan Akhgari

On Mar 10, 8:55 pm, Joe Thurbon <use... (AT) thurbon (DOT) com> wrote: Thanks. I should mention that I had an awesome flag capture. Most of the...

JOG

04-03-2008 01:06 AM
topmind

The concept of linked data is gaining mindshare with developers, users and the more than 200 software companies developing semantic tools....

Ken North

04-02-2008 04:19 AM
Ken North

Hello, RDBMSes are sometimes described as a reaction against network-/ hierarchical databases. I believe that I've read that CODASYL-like...

Troels Arvin

04-01-2008 02:42 AM
Troels Arvin

Hi, I am new to the field so I apologize if this question seems trivial. I am currently working on distributed software transactional memory (STM)....

Sherif Fadel

03-31-2008 09:27 PM
Cimode

The relational system Dataphor, heavily influenced by the work of Date and Darwen in the TTM, is now an open sourced project. Details...

steve

03-24-2008 08:37 AM
Cimode

I'm looking for someone, someone I can get an email from confirming their opinion for presenting a standard for deleing employees in an...

slinky

03-23-2008 10:59 PM
paul c

I hope it is ok to ask this here. Im having trouble with ERD's. I have been given a definition on which to draw an ERD. I did so, and...

shane

03-23-2008 03:24 PM
shane

After a long time I've browsed c.d.t posts and I noticed the never ending subject about objects. I think some of the following videos might be...

x

03-19-2008 05:20 PM
Cimode

Hey all, I buy stuff on Amazon. You know the way Amazon sees what you buy and makes recommendations? Sometimes you get these odd...

Marshall

03-17-2008 03:42 PM
Cimode

(Just my stab at moving from the recent topics towards more basic questions, sorry if there's not much newspeak in it): Say you have R with...

paul c

03-16-2008 06:55 PM
Bob Badour

2 weeks ago, I have posted a sample of the semantics am using for the db core that I am building...I was hoping some comments that would help me...

Cimode

03-15-2008 11:22 AM
Cimode

As you decide whether or not to respond to Perryman, please consider that there are a several of us who read what you write with interest. We may...

David Cressey

03-15-2008 10:32 AM
Cimode

Back in the day, Codd originally defined First Normal Form (or maybe he was just calling it Normal Form back then) and proved something about it....

Marshall

03-13-2008 12:17 PM
paul c

Hi, Say I have two tables, one called property which stores details of properties, and anothe called property_image that stores a single image for a...

bissatch@yahoo.co.uk

03-10-2008 10:08 AM
-CELKO-

1. If you were asked to specify, based on your experience, what are the top 10 data management problems rooted in poor foundational knowledge, what...

tip

03-08-2008 06:20 PM
Gene Wirchenko

Many people from both side of the fence suggested that functional programming is a promising idea that can embrace both paradigms. Here is why I...

Tegiri Nenashi

03-08-2008 02:08 PM
-CELKO-

|> +----------+ M /----------\ N +---------- + 1 | +----------+ i have a lil doubt bout it, is it allow if we make...

goruri_24@yahoo.com

03-06-2008 01:47 PM
Rob

Apologies for cross-postings. Please send to interested colleagues and students -- CALL FOR PAPERS - Deadline for submissions (new date): 31...

natty2006@gmail.com

03-06-2008 11:50 AM
natty2006@gmail.com

The Terrific Trio. I've been mulling over the discussion about mixing OO and DB, with an eye towards coming up with a system that permits an...

David Cressey

03-05-2008 12:36 AM
paul c

Hello. Is there generic attributes which can always be defined in the entities of a conceptual data model ? If yes what are these generic attributes...

marcello.cesaro@post.be

03-02-2008 05:12 PM
Cimode

Occasionally the question has come up as to whether a relation value is the body, or the body+the header. In the past I've sided with the...

Marshall

03-02-2008 03:08 PM
Jan Hidders

Hi, My current research leads me to the problem of analysis the dependency between 2 database query. For example: There is an UPDATE query and then a...

Ly Hoang Hai

02-29-2008 04:45 AM
Jan Hidders

MAINFRAME Training with IBM Certification Mainframe industry has shortage of people. Mainframe Education gives you the competitive advantage you'll...

sonu

02-25-2008 04:37 AM
sonu

"paul c" <toledobythesea (AT) ooyah (DOT) ac> wrote I'm not sure how to interpret the above. In an airline reservation system, you might have...

raylopez99

02-17-2008 07:55 PM
JOG

--------------- Glossary 0.1.3 "You keep using that word. I do not think it means january 2008 what you think it...

mAsterdam

02-17-2008 05:50 PM
mAsterdam

--------------- Glossary 0.1.4 "You keep using that word. I do not think it means february 2008 what you think it...

mAsterdam

02-17-2008 07:15 AM
mAsterdam

EISWT-08 Draft paper submission is deadline is just few days from now The 2008 International Conference on Enterprise Information Systems and Web...

john

02-14-2008 08:11 AM
john

What's the simplest way to set up a relationional database with tree data? I'm more interested in simplicity vs speed. Suppose you have a tree...

cr113

02-12-2008 11:15 PM
-CELKO-

A new buzzword seems to have crept up on me when I wasn't looking -- I'm seeing a lot about "master data management"...

TroyK

02-12-2008 02:49 PM
DBMS_Plumber

Hi, I've been trying to figure out how to use relational algebra to extract some data from the following relation: <Year, Name, Votes> where the...

gamehack

02-09-2008 10:10 PM
Bob Badour

On the last years, I have been putting some modest but consistent effort to build a computing model whose principles, I embodied under the form of a...

Cimode

02-09-2008 07:31 AM
Cimode

I was wondering what your current stances towards the principle of current design is cdt - info about the POOD is actually pretty sparse on google,...

JOG

02-08-2008 09:41 PM
David BL

Hi all, I'm currently evaluating whether a relation is in 2NF. The relation is defined as follows: <Year | Winner Name | Winner Votes | Party | Home...

gamehack

02-08-2008 05:48 PM
David Portas

The following is a technical report on a data modeling project that was recently assigned to me by my professor. I post it so that anyone else who is...

Redd

02-08-2008 02:31 PM
Jason Lepack

Marshall wrote: I suspect only 3 people in the world are comfortable with this notation:-) It is imperfect for at least two reasons: 1. Equality...

Tegiri Nenashi

02-08-2008 12:06 PM
Marshall

Marty: A few months ago you and Andrew Ross were kicking around a correction to the way tups_per_page is calculated for the iitables view. Did you...

Roy Hann

02-08-2008 08:45 AM
Bob Badour

Apologies for cross-postings. Please send to interested colleagues and students -- CALL FOR PAPERS - Deadline for submissions: 25 February 2008...

natty2006@gmail.com

02-07-2008 01:52 PM
natty2006@gmail.com

AFAIK the conventional wisdom is that no absolute definition of atomic exists for domain types. Throwing caution to the wind, in this post I wish to...

David BL

02-05-2008 05:54 AM
Jan Hidders