Types of Databases - Object Oriented

The final type of database is called an Object Oriented Database.  These databases draw relationships and hierarchies between data, but they cheat a little bit by utilizing objects and classes as ways of redefining the same data.

Image class hierarchies as "kinds" and objects hierarchies as "parts" ... eg.  A patient is a kind of person and the object John Doe's height in centimetres is a part of the object John Doe.

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