Real World Experience of db4o and/or Eloquera Database

Question

I am evaluating two object databases, db4o (http://www.db4o.com) and Eloquera Database (http://eloquera.com) for a coming project. I have to choose one. My basic requirement is

Answer 1

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

Eloquera wasn’t ported from Java as many other databases.

Eloquera natively as part of architecture supports:

• Simultaneous user access
• Security settings
• Has genuine C/S architecture, has desktop mode available.
• Max database size 1TB+, in a large data scale Eloquera maintains the fast query response; it has patents pending technologies including virtual file system, indexing, and adaptive cache. Eloquera has state of the art reflection written in MSIL that allows Eloquera to outperform many databases that use Microsoft’s standard reflection.
• Supports in-memory database for the fast data processing
• Since most of the users in the Web come from relational database world it was natural for Eloquera to support SQL and LINQ
• EF support is due next month
• Unlike some databases Eloquera does not put blindly objects in the database, if you change fields from int;int; to long; it will not keep querying with a wrong results because it still sees two int;int; - it will notify the user to update the definition
• Eloquera provides a native indexing for properties and fields. Most of the databases do not provide properties indexing.

I might argue with Carl regarding DB4O the easiest database on the market, since Eloquera can do the same things from API perspective.

Eloquera is younger than Versant and still has some enterprise features coming.

Last month Eloquera R&D department got engaged with Eloquera Parallel Server to provide horizontal scaling that arguably will be magnitude cheaper than Versant’s VOD.

Some of the distinguished points

• Eloquera is FREE for commercial use. You are not required to pay any royalties. All features above you have for FREE.
• Eloquera has a commercial support available.
• Eloquera is designed for the modern world with modern architecture. It was not adapting from time to time to market needs. It is natural part of Eloquera’s architecture.