
13
Mobile Databases and Object-Oriented DBMS
13.1 Mobile Databases 229
13.1.1 Mobile DBMS 231
13.2 Introduction to Object-Oriented Databases 231
13.3 Object-Oriented Database Management Systems 232
13.3.1 Features of OODBMS 233
13.3.2 Benefi ts of OODBMS 234
13.3.3 Disadvantages of OODBMS 234
Chapter Summary 235 • Exercises 235
14
Distributed Database Systems
14.1 SDD-1 Distributed Database System 237
14.2 General Architecture of SDD-1 Database System 238
14.2.1 Distributed Concurrency Control in SDD-1 240
Confl ict graph analysis 240
Timestamp-based protocols 241
14.2.2 Distributed Query Processing in SDD-1