Object space

An ODABA database consists of at least one object space, the root object space. Each object space may get any number of subordinated object object spaces, which create an object space hierarchy.

Usually, data in object spaces is strictly separated (by schema definition), even though one may explicitly create links between object instances of object spaces in the same database. In order to get access to multiple object spaces, one may also overload object spaces of the same or different databases.