Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Integrity control in relational database systems: an overview
Data & Knowledge Engineering
Local verification of global integrity constraints in distributed databases
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Constraint checking with partial information
PODS '94 Proceedings of the thirteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Modern database systems: the object model, interoperability, and beyond
Modern database systems: the object model, interoperability, and beyond
Protocols for Integrity Constraint Checking in FederatedDatabases
Distributed and Parallel Databases
Communications of the ACM
ACQUIRE: agent-based complex query and information retrieval engine
Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 2
Active Database Systems: Triggers and Rules for Advanced Database Processing
Active Database Systems: Triggers and Rules for Advanced Database Processing
IEEE Internet Computing
Managing Semantic Heterogeneity with Production Rules and Persistent Queues
VLDB '93 Proceedings of the 19th International Conference on Very Large Data Bases
A Java API for global querying and updates for a system of databases
Proceedings of the 43rd annual Southeast regional conference - Volume 1
Data caching strategies for checking integrity constraints of mobile database
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
Analyzing Integrity Tests for Data Caching in Mobile Databases
ICDCIT '08 Proceedings of the 5th International Conference on Distributed Computing and Internet Technology
Extracting information in reliable way from the distributed data sources in open networks
Proceedings of the International Conference on Advances in Computing, Communication and Control
An agent module for a system on mobile devices
AP2PC'04 Proceedings of the Third international conference on Agents and Peer-to-Peer Computing
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Integrity constraints are valuable tools for enforcing consistency of data in a database. Global integrity constraints ensure integrity and consistency of data spanning multiple databases. In this paper, we propose a general framework of a mobile agent based approach for checking global constraints. An insert/update/delete initiated on single site, say S1 may cause the violation of a global constraint. The check for such violation involves accessing related data from multiple sites, say S2...Sn. Constraint Checker on site S1 generates sub constraint checks on sites S2...Sn and sends multiple remote agents, rmagent2...rmagentn to sites S2...Sn respectively for checking the sub constraints. These remote agents carry with them data processing code to be executed at remote sites. Constraint Checker gathers results from the remote agents and decides if any constraint is violated. The constraint checking mechanism is much faster as the sub constraint checks are executed in parallel.