Object Identity in Database Systems

The concept of object identity and implementation of object identity in some systems have been explained in literature.Based on an analysis on the idea of data scheme in ANSI/X3/SPARC,this paper presents the concept of full-identity,which includes entity identity,conceptual object identity,and internal object identity,In addition,the equality of objects,which is richer and more practical,is discussed based on the full identity of objects.Therefore,the semantics and constructions of the identity for the complex objects are fully observed,and some appliactions in object management,version management,and user interface are found.Also,it could support the combination of O-O model with V-O model.

Object identity in database systems

The concept of object identity and implementation of object identity in some sys-tems have been explained in literature. Based on an analysis on the idea of data schemein ANSI/X3/SPARC, this paper presents the concept of fulLidentity which includesentity identity conceptual object identity and internal object identity In addition, theequality of objects, which is richer and more practical, is discussed based on the fullidentity of objects. Therefore, the semanics and constructions of the identity for thecomplex objects are fully observed, and some appllactions in object management, version management, and user interface are found. Also, it could support the combinationof O-O model with Vo model.