Generation of external schemas in ODMG databases

A method for generating external schemas in object oriented databases in the ODMG framework is proposed. External schema generation involves obtaining all the relationships existing between the classes selected to make up an external schema. This generation process is part of an external schema definition system that we are developing, which allows the definition of external schemas in ODMG. External schemas generated with this process do not extend the object oriented paradigm, and the generation of unnecessary intermediate classes is avoided.

[1]  Won Kim,et al.  On View Support in Object-Oriented Databases Systems , 1995, Modern Database Systems.

[2]  Markus Tresch,et al.  Updatable Views in Object-Oriented Databases , 1991, DOOD.

[3]  Mark Roantree,et al.  Providing views and closure for the object data management group object model , 1999, Inf. Softw. Technol..

[4]  Serge Abiteboul,et al.  Objects and views , 1991, SIGMOD '91.

[5]  David Jordan,et al.  The Object Database Standard: ODMG 2.0 , 1997 .

[6]  Renate Motschnig.  Requirements and Comparison of View Mechanisms for Object-Oriented Databases , 1996, Inf. Syst..

[7]  Elisa Bertino,et al.  A View Mechanism for Object-Oriented Databases , 1992, EDBT.

[8]  Elke A. Rundensteiner.  Multiview: A Methodology for Supporting Multiple Views in Object-Oriented Databases , 1992, VLDB.

[9]  Elisa Bertino,et al.  A Formal View of Object-Oriented Database Systems , 1997, Theory Pract. Object Syst..

[10]  José Samos.  Definition of External Schemas in Object Oriented Databases , 1995, OOIS.

[11]  Michele Missikoff,et al.  An Algorithm for Insertion into a Lattice: Application to Type Classification , 1989, FODO.

[12]  Cassio Souza dos Santos.  Design and Implementation of Object-Oriented Views , 1995, DEXA.

[13]  Johann Eder,et al.  Adding View Support to Odmg-93 1 , 1994 .

[14]  R. G. Cattell.  The object database standard , 1994 .

[15]  Zoé Lacroix,et al.  Object Views , 1998, Netw. Inf. Syst. J..

[16]  James G. Schmolze,et al.  Classification in the KL-ONE Knowledge Representation System , 1983, IJCAI.

[17]  Elisa Bertino,et al.  A formal model of views for object-oriented database systems , 1997 .

[18]  Jacob Stein.  Object views , 1993 .

[19]  José Samos,et al.  Definition of External Schemas in ODMG Databases , 2000, OOIS.