D

db4o 7.2

Carl Rosenberger  ❘ Open Source

Revolutionizing Object Databases with db4o

Elena Angelini

db4o offers a unique and powerful approach to object-oriented database management, allowing developers to easily store and retrieve objects without the hassle of complex relational schemas.
2025 Editor's Rating

db4o by Carl Rosenberger

db4o, developed by Carl Rosenberger, is an object-oriented database management system that provides a flexible and efficient solution for storing and retrieving data in object form. With its lightweight and easy-to-use design, db4o is ideal for developers looking to integrate a database seamlessly into their applications.

Key Features:

  • Object-Oriented: db4o stores data directly as objects, making data manipulation and retrieval intuitive and efficient.
  • Embeddable: The database engine can be embedded directly into Java/.NET applications, eliminating the need for a separate database server.
  • Automatic Persistence: Objects are automatically stored and retrieved without the need for complex mapping or configuration.
  • Transparent Activation: Only the objects needed are retrieved from the database, reducing unnecessary overhead.
  • Query-by-Example: Allows developers to query the database using example objects, simplifying the search process.

Benefits:

  • Simple Integration: db4o's lightweight design allows for easy integration into existing applications.
  • Efficient Data Storage: Storing data in object form eliminates the need for complex normalization, improving data retrieval performance.
  • Reduced Development Time: Automatic persistence and transparent activation reduce the amount of code needed to interact with the database.
  • Flexible Querying: Query-by-Example functionality simplifies the querying process, making it easier to retrieve specific data sets.

Use Cases:

  • Embedded Applications: Developers working on embedded systems can benefit from db4o's embeddable design, allowing for efficient data storage without the need for a separate database server.
  • Prototyping and Testing: db4o's simplicity and ease of use make it ideal for prototyping new applications or conducting testing during development.
  • Mobile Development: With its lightweight footprint, db4o is a good choice for mobile app developers looking for a streamlined database solution.

Overview

db4o is a Open Source software in the category Development developed by Carl Rosenberger.

The latest version of db4o is 7.2, released on 08/09/2008. It was initially added to our database on 08/24/2007.

db4o runs on the following operating systems: Windows.

db4o has not been rated by our users yet.

Pros

  • db4o is an object-oriented database management system, which can simplify the mapping between object-oriented programming objects and database entities.
  • It offers a lightweight, open-source solution for developers looking to work with object-oriented databases.
  • The API provided by db4o is designed to be user-friendly and intuitive, making it easier for developers to interact with the database.
  • It supports various platforms and programming languages, including Java and C#.
  • db4o offers good performance for CRUD (Create, Read, Update, Delete) operations on small to medium-sized datasets.

Cons

  • While db4o is suitable for small to medium-sized datasets, it may not perform as efficiently for large datasets due to its in-memory nature.
  • There have been concerns about the lack of robustness and scalability of db4o compared to more traditional relational databases.
  • The project development and support for db4o have slowed down in recent years, which could be a risk for long-term maintenance and updates.

FAQ

What is db4o?

db4o is an open source object-oriented database management system.

Who developed db4o?

db4o was developed by Carl Rosenberger and his team.

Is db4o still actively maintained?

No, db4o is no longer actively maintained since its last release in 2013.

What programming languages are supported by db4o?

db4o supports Java and .NET languages, such as C# and Visual Basic.

What are the main features of db4o?

db4o has features like native object persistence, transparent persistence, scalability, and ACID transactions.

Is db4o suitable for large-scale enterprise applications?

While db4o can be used for small to medium-sized applications, it may not be the best choice for large-scale enterprise applications due to its limited community support and maintenance status.

What are some alternatives to db4o?

Some alternatives to db4o are Hibernate, Apache Cassandra, MongoDB, and Oracle Database.

Can db4o run in a distributed environment?

Yes, db4o can run in a distributed environment using replication or clustering features.

Does db4o have a commercial version available?

Yes, there is a commercial version called 'ObjectContainerPlus' available for additional support and features.

Where can I find more information about db4o?

You can find more information about db4o on its official website or by referring to the documentation and tutorials provided.


Elena Angelini

Elena Angelini

I'm Elena, your go-to software reviewer at UpdateStar and tech enthusiast. Whether you're a user seeking the latest software titles or software news I've got you covered. When I'm not diving into the latest software, you can find me exploring nature trails, camping under the stars, or competing in online multiplayer games. My reviews are designed to be fun, engaging, and packed with all the details you need to make informed decisions.

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