Freeware like erwin?

H

Henk de Jong

DC said:
You mean "Irwin"? That's a game, right? Let me see...

<rummaging sounds>

Ah! Here it is:

http://www.zipperfish.com/free/games/crochunter.html
Click to expand...

Oh no!!!! Not about that Australian moron. I just wait until he gets
bitten by a croc or a snake. I hope that he'll understand after that,
that he has to leave those animals alone....

With kind regards,

--
Henk de Jong
The Netherlands
(e-mail address removed) (Remove _NO_SPAM_)
'Links to Freeware'
http://www.linkstofreeware.vze.com/
http://home.hccnet.nl/hmdejong/
 
B

Bjorn Abelli

Tirzan wrote on 29-1-2004 :

Maybe a little stupid of me, but ehh...., what is erwin?
Click to expand...

ERwin is a diagramming tool to create ER-diagrams (Entity-Relationships) for
design of tables in a relational database (RDBMS).

I also believe it has a possibility to create database tables from those
diagrams.

To the OP:

I have also searched for such a tool, and have to this day never found one
with that capability and notation (crow's foot).

I believe there is a free version of "Relationship Diagrammer" available
somewhere, but the free version is to my knowledge *crippleware* (limited
number of entities).

This one is free, but uses the "original" Chen-notation:

http://www.inf.unibz.it/~franconi/icom/

// Bjorn A
 
J

JunkMonkey

ERWin is a Database design tool using Entity Relationship diagrams. I use it
at work. It's a rich and complex program that can connect to database
engines and actually reverse engineer a database. Or in some cases it can
even connect to a DBMS and implement your design.

Pretty ambitious for a freeware programmer working alone. I'm not saying
He/She couldn't do it, but he/she'd be pretty old before version 1.0 got
released!
 
D

DC

Oh no!!!! Not about that Australian moron. I just wait until he gets
bitten by a croc or a snake. I hope that he'll understand after that,
that he has to leave those animals alone....
Click to expand...

Sometimes, I think that wanting to see him lose some bits is the only
reason people tune him in.
 
B

Bjorn Abelli

...
i'm looking for a freeware software like erwin
can u help me?
Click to expand...

This looks promising:

DB Designer 4

http://www.fabforce.net/dbdesigner4/

"DBDesigner 4 is a visual database design system that integrates database
design, modeling, creation and maintenance into a single, seamless
environment. It combines professional features and a clear and simple user
interface to offer the most efficient way to handle your databases.
DBDesigner 4 compares to products like Oracle's Designer©, IBM's Rational
Rose©, Computer Associates's ERwin© and theKompany's DataArchitect© but is
an Open Source Project available for Microsoft Windows© 2k/XP and Linux
KDE/Gnome. It is release on the GPL.

DBDesigner 4 is developed and optimized for the open source MySQL-Database
to support MySQL users with a powerful and free available design tool. All
MySQL specific features have been built in to offer the most convenient way
to design and keep control of your MySQL-Databases."

// Bjorn A
 
B

Bjorn Simonsen

Bjorn Abelli wrote in
I believe there is a free version of "Relationship Diagrammer" available
somewhere, but the free version is to my knowledge *crippleware* (limited
number of entities).
Click to expand...

I was just browsing <http://gnuwin.epfl.ch/apps/en/bestlist.html>
and noticed <http://gnuwin.epfl.ch/apps/DDT/en/index.html>.
Something like this you have been looking for? Authors home page:
<http://www.visi.com/~jjanssens> (no info there except download links.
To get more info without installing it first; one has to either
download the source, extract and look in help directory, or get the
binary - unzip the exe and extract help from cab files)

All the best,
Bjorn Simonsen
 
B

Bjorn Abelli

...
I was just browsing <http://gnuwin.epfl.ch/apps/en/bestlist.html>
and noticed <http://gnuwin.epfl.ch/apps/DDT/en/index.html>.
Something like this you have been looking for? Authors home page:
<http://www.visi.com/~jjanssens> (no info there except download links.
To get more info without installing it first; one has to either
download the source, extract and look in help directory, or get the
binary - unzip the exe and extract help from cab files)
Click to expand...

I think the screenshot together with the (short) description on the page you
provided a link for pretty much says all there is.

"Database Design Tool 1.5" does not seem to offer true engineering or
reengineering from/to diagram/database, only to/from DDL-scripts, though
that's good enough for many tasks.

And the notation seems to be some variant of IDEF1x, not crow's foot as in
ERwin. For those accustomed to building relationships between tables in MS
Access, it could be an advantage, but crow's foot, Chen or even UML are more
expressive notations IMHO.

I think "DB Designer 4" (which I mentioned in another message) will suit me
best, and to my knowledge is the freeware that comes closest to ERwin.

Thanks for the link though.

I'll put it up for my students in my DB-classes, as they should make their
own choices... :)

// Bjorn A
 

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