Session 1 -- Orthogonal Persistence Revisited -- Verification Technology for Object-Oriented/XML Transactions -- Session 2 -- Compiler Plugins Can Handle Nested Languages: AST-Level Expansion of LINQ Queries for Java -- Active Components as a Method for Coupling Data and Services – A Database-Driven Application Development Process -- Optimization of Object-Oriented Queries Involving Weakly Dependent Subqueries -- Session 3 -- Metamodelling with Datalog and Classes: ConceptBase at the Age of 21 -- Unified Event Model for Object Databases -- Session 4 -- Multi-granular Spatio-temporal Object Models: Concepts and Research Directions -- Mapping XSD to OO Schemas.

This book constitutes the thoroughly refereed post-conference proceedings of the 2nd International Conference on Object Databases, ICOODB 2009, held in Zurich, Switzerland, in July 2009. The 6 revised full papers presented together with 3 invited papers were carefully reviewed and selected from the presentations at the research track during two rounds of reviewing and improvement. These papers address a wide range of issues related to object databases, including topics such as applications, methodologies, design tools, frameworks and standards as well as core object database technologies.