db4o Developer Community

db4o open source object database, native to Java and .NET
Welcome to db4o Developer Community Sign in | Join
in Search
More Search Options

Browse by Tags

All Tags » Query » db4o   (RSS)
  • Native Queries

    Olá!Tenho uma dúvida que tenho certeza que muitos ainda vão terão (se já não tiveram) em relação a busca dinâmica. Por ex: Em um formulário com alguns campos, por exemplo, Nome, Cidade, uma combo de Departamentos, e uma de Cargos, ambas populadas por seus respectivos objetos, onde o usuário fará uma busca de que se não preencher nenhum campo e ...
    Posted to Portuguese (Forum) by capetonis on August 7, 2008
  • Access arrays by index + ReadOnly support

    I have 2 suggestions for future db4o [.NET] versions. 1. I have one persistent class, which stores data in an array. It does so because I don't know what properties will be stored at compile-time. But at run-time I know that, for example, data[0] = 'first name', data[1] = 'last name', data[2] = 'address' and so on. Now, db4o doesn't (?) ...
    Posted to db4o Product Developer Forum (Forum) by jods on May 1, 2008
  • Linq is here!

    Hot of the presses! A new project just hit our main .net repository: Db4objects.Db4o.Linq. An optimizing linq provider for db4o. Linq expressions are analyzed and optimized down to db4o's fast querying interface: SODA. Whenever a suitable translation cannot be found the query executes as a plain Linq for Objects query (a predicate that is tested ...
    Posted to Product News from the Core Team (Weblog) by Rodrigo B. de Oliveira on February 12, 2008
  • 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