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?