Copyright © 2004 Pearson Education, Inc.

Chapter 24 Enhanced Data Models for Advanced Applications

Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition Copyright © 2004 Pearson Education, Inc. Slide 24-3 Active Database Concepts and Triggers Generalized Model for Active Databases and Oracle Triggers Design and Implementation Issues for Active Databases Examples of Statement-Level Active Rules in STARBURST Potential Applications for Active Databases Triggers in SQL-99

Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition Copyright © 2004 Pearson Education, Inc. Slide 24-4 Temporal Database Concepts Time Representation, Calendars, and Time Dimensions Incorporating Time in Relational Databases Using Tuple Versioning Incorporating Time in Object-Oriented Databases Using Attribute Versioning Temporal Querying Constructs and the TSQL2 Language Time Series Data

Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition Copyright © 2004 Pearson Education, Inc. Slide 24-5 Multimedia Databases Introduction to Spatial Database Concepts Introduction to Multimedia Database Concepts

Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition Copyright © 2004 Pearson Education, Inc. Slide 24-6 Introduction to Deductive Databases Overview of Deductive Databases Prolog/Datalog Notation Datalog Notation Clausal Form and Horn Clauses Interpretation of Rules Datalog Programs and Their Safety Use the Relational Operations Evaluation of Nonrecursive Datalog Queries

Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition Copyright © 2004 Pearson Education, Inc. Slide 24-7 Summary