OBJECT ORIENTED DATA MODEL

• ODBMS ADD TO THE DATABASE WORLD THE NOTIONS OF:
  
  
  • TYPE
  • INHERITANCE
  • AGGREGATION
  
  
• ODBMSs INTRODUCE A HOST OF COMPLEX ISSUES:
  
  
  • PERSISTENCE
  • VERSIONING
  • SCHEMA OPTIMIZATION (NORMALIZATION)
  • QUERY LANGUAGES
  • SCHEMA EVOLUTION
  
  

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Ugo O. Gagliardi
GSD-6306 Spring 2003-2004