Software For Diagramming Database Relations?

etrnl asks: "I'm designing several websites with databases, and even designing a message board that supports multiple RDBMSes. What I'm looking for is a tool under Unix that I can use to diagram the relationships of different databases. Right now I'm using myODBC, myAccess, and Access 2k but there's got to be something better in the Open Source community (outside of using dia by hand...). I'm looking for support for mySQL, PostgreSQL, and Oracle if possible."

Comments

Sorry Mate

[CaptainZapp]

I hope I'm wrong here but I fear the worst.

There is a {free | open source} product which is called TCM.

It is not specifically an ERD editor, but provides a set of various diagramming editors and tools.

Overall I like it, but since it attempts to support a lot of diagrams, I don't perceive it as very strong in the ERD area.

If you don't want to delve into details (attributes, constraints) and remain on a fairly high level (entities), this might work for you.

Usual disclaimer: It's 6 month ago when I tried it, it might have improved a lot...

Personally, I use W2K and a product called DeZign, which is reasonably priced and offers a cripple ware version for download and trial.

Good Luck..