Distributed Database Integrity

摘要

The Distribution Database Integrity (DDBI) project is a research effort funded byRome Laboratory and conducted at the Computer Science Laboratory of SRI International. The main goal of this effort was to improve data integrity and consistency management techniques for C3 database application environments. The objective of this effort was to examine data integrity, consistency and concurrency control techniques for distributed object-oriented (0-0) database management systems. Specific areas that were investigated include: (1) rule-based concurrency control techniques for dynamic C3 processing, (2) adaptive concurrency techniques for dealing with consistency versus availability of data, (3) temporal database mechanisms for retaining multiple versions of database objects, (4) rules, constraints, and application-specific knowledge-bases for integrity maintenance, (5) active triggers for automatically enforcing integrity rules based upon local or remote updates, and (6) the effect of incrementally mutable objects (IMO's) on distributed database integrity. The contribution is flexible, robust, data integrity techniques for distributed object-oriented database management systems. Distributed Systems, Database, Technology, Database Security, Integrity.