Versant Object Database is used by the world's largest enterprises that have significant large-scale data management requirements. The Versant Object Database can easily handle growth in enterprise object models – access time to objects is constant, independent of the inheritance structure.
For more information about Versant Object Database go here
Versant Object Database 9
VOD 9 is the current GA release version of our flagship object oriented database system providing enhanced support for high performance computing multi-CPU / multi-core server architectures, significant optimizations in internal memory management and caching implementations, and updates to its standard programming interfaces for C++ and Java.