What primary characteristics should OID possess? (OBJECT IDENTIFIER)

Q:- What primary characteristics should OID possess?


ANS:- Object Identification: An object identifier (OID) is an unambiguous, long-term name for any type of object or entity. In a database, an OID is a set of integers that uniquely identifies each Row (or record) in a table.

Object identification in object models means that every object instance has a unique, unchanging identity. Object identification is often referred to as an OID. OIDS are used to reference object instances.


Characteristics of OIDS:


(1) OIDs are independent of data contained in the object. The internal data values are not used to generate identification.


(2) OIDs are generated by the object system. Users or programs have no control over identification.


(3) OIDs last the lifetime of the object. The OID never changes even when the data contents may change.

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