An in-depth guide to object databases from researchers and developers in the field To build robust databases that are easier to maintain and contain less code, object databases use object-oriented languages such as C++ and Java along with object technologies. This book provides a comprehensive guide to object data management and explores some of the latest topics in the field such as JDBC and SQLJ support in object-relational databases, XML for data access, and database modeling using UML. Readers will also find a practical discussion of object data management and a number of detailed case studies showing first-hand experiences using the latest tools and products including GemStone, O2, Objectivity/DB, ObjectStore, Oracle and Poet. A companion Web site contains links to object-oriented database software applications, resources, and source code The promise of object databases has yet to be met, but with new technologies like Java, XML, and UML, they are starting to get a second look. Of particular interest is the combination of object and relational databases.