Chapter 16. O

object A thing.

object class See class (second definition).

object ID A pointer, q.v.

object modeling See semantic modeling.

object oriented / object orientation Leaning toward things.

object/relational database A relational database (see object/relational DBMS).

object/relational DBMS A relational DBMS. Note: In practice, the major distinction between commercial DBMSs that provide "object/relational" support and those that don't is simply that the former allow users to define their own types. But a true relational DBMS does so too, and a DBMS that doesn't provide such support thus can't reasonably claim to be fully relational, even if it supports other aspects of the relational model. The fact is, the term object/relational is little ...

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