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Object database search

I am looking for an object database for .NET, which is open source and free for commercial use. I need something that is available as assemblies and / or source code for embedding in a project, i.e. Not a standalone database in its own process.

I know about db4o, and it would be great if the commercial license did not reach the price.

ACID transaction support is desirable, but I just want to know what options are there.

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IMO the one you mention (db4O) is easily the head and shoulders of the best OODBMS. It just works, as you expect, it supports Linq and perf. It is also free for you in development mode and free for use in open source projects.

And ... for commercial use, the license is very attractive, as a rule, you pay only on a (very small) percentage basis of your income. IMO for the commercial product that it’s totally costing, your customers will also be happy to know that your database solution is supported by someone like Versant, and not some potentially forked or abandoned open source solution.

I know that you want to get free all the way, but honestly, you will refuse a lot from this, and the small price you will pay for db4O (after you already make money from it) will be completely worth it.

(I have no affiliation with Versant or db4o, except that I am very happy)

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Try the Eloquera database (www.eloquera.com). It is FREE for commercial use and its own .NET object database.

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I think eloquera (www.eloquera.com) is better than db4o, and also has better licensing. For example, Eloquera is free for commercial use, but db4o is not (db4o has the same licensing options as mysql, free is free, but paid for commercial use).

For this and technical things, I think Eloker is better.

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What objects do you need to store? One of the possibilities is MongoDB , which allows you to store documents containing pairs of JSON key values. There is a C # / driver. NET

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Try the scalable object storage infrastructure (SOP) from http://www.4atech.net !

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