473,699 Members | 2,377 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Need help to understand difference, and contrast between Relational database model and the Object-Oriented model

Hi,
I have a hard time to understand difference and similarities between
Relational database model and the Object-Oriented model. Can somebody
help me with this?
Thank you in advance.

Yensao
Jul 19 '05 #1
34 7091
Which object-oriented model do you mean?

"yensao" <ye************ @yahoo.com.au> wrote in message
news:91******** *************** ***@posting.goo gle.com...
Hi,
I have a hard time to understand difference and similarities between
Relational database model and the Object-Oriented model. Can somebody
help me with this?
Thank you in advance.

Yensao

Jul 19 '05 #2
In article <91************ **************@ posting.google. com>, yensao
<ye************ @yahoo.com.au> writes
Hi,
I have a hard time to understand difference and similarities between
Relational database model and the Object-Oriented model. Can somebody
help me with this?
So why send it to a group about a post-relational database?
Thank you in advance.

Yensao


Cheers,
Wol
--
Anthony W. Youngman - wol at thewolery dot demon dot co dot uk
Witches are curious by definition and inquisitive by nature. She moved in. "Let
me through. I'm a nosey person.", she said, employing both elbows.
Maskerade : (c) 1995 Terry Pratchett
Jul 19 '05 #3
ye************@ yahoo.com.au (yensao) wrote in message news:<91******* *************** ****@posting.go ogle.com>...
I have a hard time to understand difference and similarities between
Relational database model and the Object-Oriented model. Can somebody
help me with this?


There is not a thing called The Object-Oriented Model.
Regards
Alfredo
Jul 19 '05 #4
for oracle's take on it, you may want to review the their 'Application
Developer's Guide - Object-Relational Features' manual

-- mcs

"yensao" <ye************ @yahoo.com.au> wrote in message
news:91******** *************** ***@posting.goo gle.com...
| Hi,
| I have a hard time to understand difference and similarities between
| Relational database model and the Object-Oriented model. Can somebody
| help me with this?
|
|
| Thank you in advance.
|
| Yensao
Jul 19 '05 #5
Relational databases use keys. Object databases use some sort of
pointer to physical storage location.

That's all.
yensao wrote:
Hi,
I have a hard time to understand difference and similarities between
Relational database model and the Object-Oriented model. Can somebody
help me with this?
Thank you in advance.

Yensao


Jul 19 '05 #6
Nobody <no****@nowhere .net> wrote in message news:<xzbBb.650 50$_M.317461@at tbi_s54>...
Relational databases use keys. Object databases use some sort of
pointer to physical storage location.

That's all.


Is this a nonsense competition?
Alfredo
Jul 19 '05 #7

"Alfredo Novoa" <al*****@ncs.es > wrote in message
news:e4******** *************** ***@posting.goo gle.com...
Nobody <no****@nowhere .net> wrote in message news:<xzbBb.650 50$_M.317461@at tbi_s54>...
Relational databases use keys. Object databases use some sort of
pointer to physical storage location.

That's all.


Is this a nonsense competition?


Alfredo, why don't you explain to us why you think this answer is
nonsense.
Don't relational databases rely on foreign keys to relate data in one
table row
to another table row? I'm pretty sure they do and I am also pretty sure
that ODBM
systems do use direct pointers to relate objects together.

Yes object databases are relatives of "Network Model" databases, but
so what! There are certain types of applications that can benefit from
the
use of object database systems. Personally I use all the tools at my
disposal
when architecting a solution for a particular problem. I don't try to
wedge
relational database solutions into problems that can benefit from
alternate
database technologies.

--Corey

Alfredo

Jul 19 '05 #8
"Corey Brown" <co***@spectrum software.net> wrote in message
news:8F******** *******@bignews 3.bellsouth.net ...

"Alfredo Novoa" <al*****@ncs.es > wrote in message
news:e4******** *************** ***@posting.goo gle.com...
Nobody <no****@nowhere .net> wrote in message news:<xzbBb.650 50$_M.317461@at tbi_s54>...
Relational databases use keys. Object databases use some sort of
pointer to physical storage location.

That's all.


Is this a nonsense competition?


Alfredo, why don't you explain to us why you think this answer is
nonsense.
Don't relational databases rely on foreign keys to relate data in one
table row
to another table row? I'm pretty sure they do and I am also pretty

sure that ODBM
systems do use direct pointers to relate objects together.


That's about as useful as observing the difference between cars and
airplanes is to note that airplanes use bulkheads and cars use airbags.
Jul 19 '05 #9
No, it's more like difference between how smart you think you are and
how smart you really are. There's a *big* difference, but you'll never
see it.

Bob Badour wrote:
"Corey Brown" <co***@spectrum software.net> wrote in message
news:8F******** *******@bignews 3.bellsouth.net ...
"Alfredo Novoa" <al*****@ncs.es > wrote in message
news:e4****** *************** *****@posting.g oogle.com...
Nobody <no****@nowhere .net> wrote in message


news:<xzbBb.6 5050$_M.317461@ attbi_s54>...
Relationa l databases use keys. Object databases use some sort of
pointer to physical storage location.

That's all.
Is this a nonsense competition?


Alfredo, why don't you explain to us why you think this answer is
nonsense.
Don't relational databases rely on foreign keys to relate data in one
table row
to another table row? I'm pretty sure they do and I am also pretty


sure
that ODBM
systems do use direct pointers to relate objects together.

That's about as useful as observing the difference between cars and
airplanes is to note that airplanes use bulkheads and cars use airbags.


Jul 19 '05 #10

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
2015
by: S. Cole | last post by:
Hi! I need help with creating a relational database and normalizing it. I've been studying the process of creating a relational database, however I am unsure if I am doing it correctly. Below is a sample list I have created (on paper)of my database design. Can someone review and let me know if I am doing everything correctly and give me suggestions for improvement?
5
2231
by: Brent Ritchie | last post by:
Hello, My name is Brent Ritchie. I am starting a project for my family as a christmas present. What I want to do is create a lightweight database of my family tree, and allow family members to run a web service locally in thier browser. Because of it being local I don't want them to have to install a perl or PHP server or a database server on thier machines. So I looked to XML, which I am very new to. What I want to know is it possible...
18
2753
by: comcast | last post by:
Hello all, I am developing an interface system for an application I was written. This interface will connect to other system to share information. I would like to use xml and xsl to generically describe each interface. The trouble I am having is that it seem that if you export in xml by table then it is impossible to combine the xml tables files back together in a hierarchical fashion. I can do it programmatically but I would like to...
5
3224
by: Markus Seibold | last post by:
Dear NG, I am working on a student project about a mobile tourism information system and among others I have to answer the question whether to use: - a relational database - a XML-native database - a hybrid (XML atop relational database) Can anyone please provide me with links and preferably article on this topic (so that I can cite them in my paper)?
0
2405
by: Mike | last post by:
Hello, I'm trying to understand how to map hierarchical XML data to relational database tables, but I seem to be missing something. I'm not a database expert, but I know the basics. XML seems so much more intuitive to me, though. Anyway, let me make up an example: Say we have an address book, in XML format, that is to be uploaded by a customer and then mapped into relational database tables. I would start by creating an XML Schema...
6
1652
by: Shwetabh | last post by:
Hi, I have a very simple question. In what cases are relational databases necessary? Are they really necessary in cases where only a single type of query is to be performed based on one unique field or can we just put all fields together in a single database and just access them through that unique field?
7
1705
by: shahram.shirazi | last post by:
Hi all, This is a very stupid question, but it has been years since i've touched databases so any help will be very appreciated. I am designing a school registration database which also serves as an analysis application for an LEA or something. Im trying to get my head round the design and it really annoying me!! lol
2
1847
by: nacho222 | last post by:
I'm currently in the middle of writing a persistence framework, and I have to make a design decission. The framework will take care of all the saving and restoring objects, and also the relationships between them. Obviously, I need a way to identify objects uniquely. Now, one way would be to use an autogenerated id from a autoincremental field in the DB. But the problem is that I need to know the ID of the object as soon as it is created,...
4
2608
by: zfareed | last post by:
I would like to create a relational database using only C++. What would be more appropriate, using arrays, linked lists or some sort of templates and structs? Any advice?
10
3047
by: nayden | last post by:
I started playing with python a few weeks ago after a number of years of perl programming and I can say that my first impression is, unsurprisingly, quite positive. ;) The reason I am writing here is that I can't seem to figure out how to save/restore python objects into a relational database. The way I used to do it in perl was to 'freeze' the object before storing it into the database and 'thaw' it before restoring it. (For those not...
0
8697
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8621
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9184
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9042
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8929
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
1
6538
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
4634
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
2
2357
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2013
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.