OPM*QS: The Object-Protocol Model Multidatabase Query System

I-Min A. Chen, Anthony Kosky, Victor M. Markowitz, and Ernest Szeto

Data Management Research and Development Group
Information and Computing Sciences Division
Lawrence Berkeley National Laboratory
1 Cyclotron Road, Berkeley, CA 94720

January 1996

Abstract:

Postscript version of this document

• Introduction
• The Object-Protocol Model and Query Language
  • The Object-Protocol Model
  • The OPM Query Language
  • The OPM Data Management Tools
• The OPM Multi-Database Query Language
• The OPM Multidatabase Query System
  • Multidatabase Query Strategy
  • The Multi-Database Directory
  • Multidatabase Query Processing
• Constructing an OPM Multidatabase System: An Example
  • GDB: The Genome Database
  • GSDB: The Genome Sequence Database
  • Relationships between GDB and GSDB
• Using the OPM Multidatabase Query System: An Example
  • Typical Queries Expressed over GDB and GSDB
  • Evaluating Queries Expressed over GDB and GSDB
• Preliminary Conclusions
  • Constructing a Multidatabase System
  • Multidatabase Query Processing Strategy
  • Assumptions and Problems
  • Technological Alternatives
• References
• Part of GDB and GSDB OPM Schemas
  • Part of the GDB OPM Schema
  • Part of the GSDB OPM Schema