1. 6/25/2018

2. Distributed Databases and Client–Server Architectures
Chapter 25
Distributed Databases and Client–Server Architectures

3. Distributed Database Concepts
Parallel Versus Distributed Technology
Advantages of Distributed Databases
Additional Functions of Distributed Databases

4. Data Fragmentation, Replication, and Allocation Techniques for Distributed Database Design
Data Replication and Allocation
Example of Fragmentation, Allocation, and Replication

5. Types of Distributed Database Systems

6. Query Processing in Distributed Databases
Data Transfer Costs of Distributed Query Processing
Distributed Query Processing Using Semijoin
Query and Update Decomposition

7. Overview of Concurrency Control and Recovery in Distributed Databases
Distributed Concurrency Control Based on a Distinguished Copy of a Data Item
Distributed Concurrency Control Based on Voting
Distributed Recovery

8. An Overview of 3-Tier Client-Server Architecture

9. Distributed Databases in Oracle

10. Summary