| | Rating Thread /
Thread Starter | Last Post | Replies | Views |
|  | Any thoughts, ideas, references - I'd like to hear them.
Nilone
|
03-08-2010 01:21 PM
Nilone | 2 | 68 |
|  | On Feb 21, 7:05 pm, Jan Hidders <hidd... (AT) gmail (DOT) com> wrote:
I got that wrong. I should have said:
The crucial point is this: Whereas...
Ben Finney
|
03-03-2010 04:12 PM
Gene Wirchenko | 66 | 194 |
|  | We at Nob Hill Software are working on a new query tool:
http://www.nobhillsoft.com/MarieAlix.aspx?HeardVia=ptut
You can read all about it on the...
Mia
|
03-01-2010 08:44 AM
Mia | 0 | 14 |
|  | This is weird.
Earlier today I moved the directory containing II_SYSTEM (/opt) to a
new drive. Afterwards I was able to start Ingres just fine...
Roy Hann
|
02-26-2010 12:28 PM
Roy Hann | 1 | 32 |
|  | I use the computer and the Net on a regular basis but I don't know a whole lot about it all, especially when it gets technical. I have an Acer...
Virgina Hernandez
|
01-27-2010 02:32 PM
Virgina Hernandez | 0 | 187 |
|  | Brian wrote:
Imbeciles do. I don't think any political inclination manages to
exclude imbeciles very successfully. I consider myself pretty...
Roy Hann
|
01-17-2010 02:17 PM
Roy Hann | 2 | 73 |
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fitz
|
01-12-2010 04:06 PM
fitz | 0 | 47 |
|  | Hi all,
i am a master's student. I have to do a keyword search for spatial
database. I have the data set of a particular district in India. I
have a...
Kavita
|
01-06-2010 02:21 AM
Kavita | 0 | 92 |
|  | Jan Hidders says...
Well, as I said, I don't see how the proof of a contradiction
could go through. The variant looks similar to your...
Nilone
|
01-05-2010 07:28 AM
Daryl McCullough | 96 | 429 |
|  | On Dec 22, 12:13*am, Jan Hidders <hidd... (AT) gmail (DOT) com> wrote:
Hello Jan. As I told you a few years ago, my “simple form” is the way
in...
Sampo Syreeni
|
12-27-2009 09:36 AM
vldm10 | 55 | 774 |
|  | Cimode wrote:
If I understand what you mean, I have to say that it would be a mug's
game to try that because you'd have to interface to the many...
Cimode
|
12-17-2009 11:10 AM
Tonci Korsano | 15 | 177 |
|  | Hi There!
is there a way to make the count(*) return zero . because the default
behavoir is that it will skip this value if there is no records so...
Guto
|
12-16-2009 04:56 PM
TroyK | 7 | 96 |
|  | Hello friends , Yesterday while I am trying to convert My Sql to Sql
Server , I found an online Conversion tool which helped me to convert
My Sql to...
Additya
|
12-12-2009 11:11 AM
Bob Badour | 1 | 72 |
|  | A few days ago I noticed this an interesting correlation between ideas
on my website and those on the following:...
vldm10
|
12-03-2009 04:13 AM
vldm10 | 0 | 70 |
|  | From: http://www.json.org/
JSON (JavaScript Object Notation) is a lightweight data-interchange
format. It is easy for humans to read and write. It...
Casey Hawthorne
|
11-26-2009 08:35 PM
Clifford Heath | 5 | 83 |
|  | Apologies for cross-postings. Please send to interested colleagues
and students
-- CALL FOR PAPERS - Deadline for submissions: 19 February 2010...
natty2006@gmail.com
|
11-25-2009 06:02 AM
natty2006@gmail.com | 0 | 74 |
|  | http://www.nou.edu.ng/noun/NOUN_OCL/pdf/pdf2/MBA%20758%20Database%20Management%20System.pdf
"IBM started working on a prototype system loosely based...
paul c
|
11-22-2009 10:27 PM
compdb@hotmail.com | 2 | 84 |
|  | One I can't seem to find is:
E. F. CODD, "Recent Investigations in Relational Database Systems," IBM.
Research Report RJ1385
Grateful if anybody...
paul c
|
11-22-2009 11:13 AM
Cimode | 3 | 64 |
|  | We at Nob Hill Software are working on a new query tool:
http://www.nobhillsoft.com/MarieAlix.aspx?HeardVia=ptut
You can read all about it on the...
Mia
|
11-18-2009 01:16 PM
Mia | 0 | 69 |
|  | Mr. Scott wrote:
Thanks, I shouldn't have dropped those two dependencies and I take back
the strawman crack.
But I don't get why { CITY, CLASS,...
paul c
|
11-17-2009 12:40 PM
Sampo Syreeni | 6 | 92 |
|  | ASONAM 2010 - CALL FOR PAPERS
(A printable typeset version of a more extensive CfP can be found at
<http://asonam2010.hau.gr/>.)
The 2010...
tanseletu@gmail.com
|
11-08-2009 07:07 AM
tanseletu@gmail.com | 0 | 174 |
|  | I can't remember where in his papers Codd stated the Information
Principle but here's a version of a quote by Date: "The entire
information content...
paul c
|
11-07-2009 08:28 AM
Cimode | 57 | 615 |
|  | Vadim Tropashko wrote:
How does one express de Morgan's Law in relational lattice terms?
paul c
|
11-06-2009 09:21 PM
Vadim Tropashko | 1 | 156 |
|  | You have the direction wrong. Coupons are created and go out with
orders, so the set of coupons defined in rvOrders is the total set
known of by the...
Sampo Syreeni
|
11-01-2009 05:41 PM
Reinier Post | 90 | 447 |
|  | Hi All,
I'm trying to implement a tree structure, hence I'd like the Nested
Set model, but I need to be able to record the history of the...
Ed Lucas
|
10-31-2009 11:32 PM
-CELKO- | 6 | 185 |
|  | I just realized that, for a number of years already, I've continuously
been bumping into something that could perhaps be generalized into a
bona fide...
Sampo Syreeni
|
10-23-2009 11:40 PM
Sampo Syreeni | 0 | 70 |
|  | A long time ago when I thought I already knew something about data but
hadn't yet worked with databases -- telling in itself -- I had the
opportunity...
Sampo Syreeni
|
10-21-2009 02:08 PM
Sampo Syreeni | 1 | 80 |
|  | Dear comp.databases.theory Group,
over the last one or two years you helped me a couple of times when i
asked silly questions, mainly about...
Christoph Rupp
|
10-21-2009 12:03 AM
paul c | 30 | 496 |
|  | Join .Net Community
This group represents the Microsoft .Net community. All .net
programmers all around the world are welcome here. In this...
Shawon_
|
10-20-2009 06:09 AM
Shawon_ | 0 | 53 |
|  | On Oct 19, 6:29*pm, Sampo Syreeni <de... (AT) iki (DOT) fi> wrote:
Did you try FBI (on pseudocolumn such as "case when x=null then 'N/A'
else x end"...
Tegiri Nenashi
|
10-19-2009 10:23 PM
Tegiri Nenashi | 0 | 54 |
|  | paul c wrote:
That hasn't happened anywhere near me. SAP is very widely used, for example,
and more and more organisations have given up on bespoke...
lawpoop
|
10-19-2009 02:59 PM
Roy Hann | 35 | 551 |
|  | Hi,
When defining numeric columns, for the last 10 years in Oracle I have
NEVER specified the size for a number unless I am specifically
required to...
VTR250
|
10-12-2009 05:41 PM
VTR250 | 6 | 172 |
|  | I am posting this link because I think it gives an excellent summary
of where we are
in utilizing databases in applications
Your...
laurip
|
10-11-2009 01:46 PM
Cimode | 12 | 214 |
|  | Like most people around here, I periodically return to the view update
problem. I also subscribe to the idea that relational databases...
Sampo Syreeni
|
10-05-2009 01:31 PM
rpost | 2 | 106 |
|  | I'm new to relational theory, having read a C.J. Date's book but I worry
that I may have picked up mistaken impression about the relational
theory...
Banana
|
10-01-2009 08:28 PM
David BL | 42 | 234 |
|  | On Jul 23, 6:43 pm, Nilone <rea... (AT) gmail (DOT) com> wrote:
I'm associating OO with *any* approach (however carefully formalised)
that involves...
Walter Mitty
|
09-30-2009 02:22 AM
Clifford Heath | 123 | 1,117 |
|  | I have a situation that is somewhat the opposite of the case in which
you would use ON DELETE CASCADE on a foreign key in a child table to
ensure...
cm
|
09-30-2009 12:12 AM
Brian | 8 | 88 |
|  | I am trying to get a top-down understanding of what an RDBMS does to
go
from a SQL Query to actual data (records served up).
Your thoughts / Links...
David
|
09-14-2009 12:22 PM
Hugo Kornelis | 2 | 168 |
|  | Regarding so-called "union compatibility",.suppose relations A and B
with equal headings, say named h. Suppose non-empty relation U with
only one...
paul c
|
09-12-2009 11:00 PM
paul c | 3 | 212 |
|  | Suppose we have views u, w defined as relational expressions over base
tables x, y, z:
u = f(x,y,z)
w = g(x,y,z)
Let's assume this system of...
Tegiri Nenashi
|
09-12-2009 05:22 AM
paul c | 10 | 163 |
|  | Not sure what to make of this:
USPTO Application #: 20080222602
Title: Declarative object identity using relation types
Abstract: The present...
Nilone
|
09-10-2009 01:45 AM
vldm10 | 1 | 91 |
|  | Why do implementation languages not allow this? Surely not for logical
reasons? We can delete from projection because NOT Pa implies NOT Pab,
eg.,...
paul c
|
09-08-2009 08:39 AM
Brian | 29 | 416 |
|  | I had a though about possreps the other day, and I wanted to post
it, for no particular reason. This thought is not much developed,
so don't expect...
Marshall
|
09-06-2009 09:42 AM
none | 9 | 100 |
|  | On Sep 1, 8:12*am, Kevin Kirkpatrick <kvnkrkpt... (AT) gmail (DOT) com> wrote:
Do you have anything to justify these requirements? They
sound like...
paul c
|
09-03-2009 07:34 PM
paul c | 117 | 757 |
|  | Vadim Tropashko wrote:
I must admit that relational lattices sound rather scary to me; but maybe
some further reading on the subject could cure...
Troels Arvin
|
08-26-2009 10:00 AM
Vadim Tropashko | 4 | 204 |
|  | Bob Badour wrote:
Given a relation with a key K1, ... Kn and remaining attributes
L1, ... Lm, that relation is always the join of the m...
rpost
|
08-25-2009 09:09 AM
Walter Mitty | 16 | 383 |
|  | He has turned his course text into a free book at:
http://bookboon.com/uk/student/it/an-introduction-to-relational-database-theory
It is rather...
paul c
|
08-22-2009 02:26 PM
paul c | 0 | 63 |
|  | Hi,
I'm looking for a solution for the following scenario:
- System running on multiple servers (could be dozens)
- Each server is running IIS and...
Docco
|
08-17-2009 11:05 PM
toby | 2 | 106 |
|  | "paul c" <toledobythesea (AT) oohay (DOT) ac> wrote
I like this war story. I salute you, old timer.
I was once an assembly language type myself....
Walter Mitty
|
08-17-2009 05:11 PM
Walter Mitty | 70 | 514 |
|  | I'm looking for any references, discussion or theory about
hierarchical models for situations such as residential addresses,
geopolitical...
Nilone
|
08-17-2009 05:14 AM
Nilone | 8 | 205 |