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db4o open source object database, native to Java and .NET
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  • Storing and querying Terabytes of data

    We would like to use an Object Database, as part of a high frequency data .NET application, to store 50GB of data per day, 5 days a week. (We would be storing 512 bytes objects at rates of up to ~3MB of data per second, we expect to store 10 Terabytes a year)  We are worried regarding db4o maximum dbsize limit, 254GB, which would ...
    Posted to db4o User Forum (Forum) by yogevm on November 22, 2007
  • Query on Collection size in Object Manager?

    Hi Assuming I have a large set of objects, each with an embedded Collection of some sort, can I use the Object Manager query facility to query on the Collection size? In other words something like this: FROM 'com.test.Object' where collection.size() > 50 The OM documentation shows the basics only so I am not sure what can be done with the ...
    Posted to db4o User Forum (Forum) by LanceB on October 12, 2007