November 2008
Intermediate to advanced
592 pages
20h 13m
English
Content preview from Introduction to Database Systems
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CHAPTER 16
OBJECT-BASED DATABASES
After reading this chapter, the reader will understand:
- The need for object-based databases
- Two streams of object-based databases, that are object-relational and object-oriented databases
- Extension of SQL to support complex data types and object-oriented features, such as inheritance
- Defining structured data types using row and array type constructors
- Defining methods on the structured types
- The concept of type inheritance and table inheritance The concept of object identifier (OID) and reference types in SQL
- Characteristics of object-oriented databases including persistence and versioning
- The standard model of OODBMS, that is, the ODMG object model
- Various concepts and technologies related to object model, ...
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