Comparison of object database management systems: http://en.wikipedia.org/wiki/Comparison_of_object_database_management_systems
and
Comparison of object-relational database management systems: http://en.wikipedia.org/wiki/Comparison_of_object-relational_database_management_systems
and
Comparison of object-relational mapping software: http://en.wikipedia.org/wiki/Comparison_of_object-relational_mapping_software
Are they all the same? What is the difference?
object database management systems: A database management system (DBMS) that stores Objects. http://en.wikipedia.org/wiki/Object_database
object-relational database management systems: Like a relational DBMS but it can store objects and has object-oriented capabilities (like inheretence). http://en.wikipedia.org/wiki/Object-relational_database
and
object-relational mapping software: A software interface, that provides functions to store Objects of an OO language into a relational DBMS (tables) http://en.wikipedia.org/wiki/Object-relational_mapping