Comments on: Did you know about db4o – a brilliant object oriented database

By: Dmytro Bablinyuk

Dmytro Bablinyuk — Tue, 08 Jun 2010 03:52:31 +0000

As another alternative try Eloquera Database ( http://www.eloquera.com ).
Eloquera is a native .NET object database.

Eloquera originally designed and developed for use in the Web environment and it’s designed as native .NET application in C#.

- Save the data with a single line of code
- 1TB+ max database size
- SQL and LINQ queries
- Simultaneous user access
- Security settings
- Has genuine C/S architecture, has desktop mode available
- Supports in-memory database for the fast data processing
and many more

And it is completely FREE for commercial use.

By: siaqodb user

siaqodb user — Thu, 25 Feb 2010 21:08:34 +0000

I suggest to try siaqodb (http://siaqodb.com). Has LINQ default and only query engine, fast, simple, runtime royalty free, cheap per developer licenses

By: HieuUK

HieuUK — Wed, 03 Feb 2010 16:07:55 +0000

You’re actually right. I haven’t really notice it ‘cos most of my applications is under GPL. $1000+ is for db4o Developer Network (dDN) but you will need to contact them to get the price for Runtime License. I will update my post so it’s not misleading.

Sorry for the confusion.

By: Mr. Cool

Mr. Cool — Wed, 03 Feb 2010 13:59:34 +0000

You say “And guess what, it’s free and open source as well”

Well, it’s not really free is it? Unless your product is GPL, and that’s a major gap, this product is hardly free

By: CodeZorro

CodeZorro — Wed, 03 Feb 2010 11:21:18 +0000

Hi, This is not free (except for GPL projects). It’s very expensive ($1000+) for commercial projects and on top of that they charge a run time fee for every deployment. It’s completely priced out of the market for a small commercial applications selling for under $100.

By: HieuUK

HieuUK — Thu, 28 Jan 2010 17:05:48 +0000

Hi, the problem you bring up is quite interesting and I think many people think about it as well, so I updated my blog to answer your question.

By: Digital Media Minute

Digital Media Minute — Thu, 28 Jan 2010 16:34:21 +0000

Object Oriented Database db4o…

If you’re creating a local database but have an amount of data that might be a little too big for XML serialization, take a look at db4o if you aren’t already familiar with it. Here’s a little intro and demo of this open source object…

By: Joan-Carles Vilaseca

Joan-Carles Vilaseca — Thu, 28 Jan 2010 11:21:23 +0000

Usually object oriented database does not manage class versioning, so what happens if you add new class members?