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
34  7069 
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
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 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
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
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
Nobody <no****@nowhere .net> wrote in message news:<xzbBb.650 50$_M.317461@at tbi_s54>... Relational databases use keys. Object databases use some sort of
pointer to physical storage location.
That's all.
Is this a nonsense competition?
Alfredo
"Alfredo Novoa" <al*****@ncs.es > wrote in message
news:e4******** *************** ***@posting.goo gle.com... Nobody <no****@nowhere .net> wrote in message
news:<xzbBb.650 50$_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
"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$_M.317461@at tbi_s54>... Relational databases use keys. Object databases use some sort of
pointer to physical storage location.
That's all.
Is this a nonsense competition?
Alfredo, why don't you explain to us why you think this answer is
nonsense.
Don't relational databases rely on foreign keys to relate data in one
table row
to another table row? I'm pretty sure they do and I am also pretty
sure that ODBM
systems do use direct pointers to relate objects together.
That's about as useful as observing the difference between cars and
airplanes is to note that airplanes use bulkheads and cars use airbags.
No, it's more like difference between how smart you think you are and
how smart you really are. There's a *big* difference, but you'll never
see it.
Bob Badour wrote: "Corey Brown" <co***@spectrum software.net> wrote in message
news:8F******** *******@bignews 3.bellsouth.net ...
"Alfredo Novoa" <al*****@ncs.es > wrote in message
news:e4****** *************** *****@posting.g oogle.com...
Nobody <no****@nowhere .net> wrote in message
news:<xzbBb.6 5050$_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.
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