Communications of the ACM
Efficiently updating materialized views
SIGMOD '86 Proceedings of the 1986 ACM SIGMOD international conference on Management of data
ACM Transactions on Database Systems (TODS)
The HiPAC project: combining active databases and timing constraints
ACM SIGMOD Record - Special Issue on Real-Time Database Systems
Implementing large production systems in a DBMS environment: concepts and algorithms
SIGMOD '88 Proceedings of the 1988 ACM SIGMOD international conference on Management of data
IEEE Transactions on Software Engineering
Exploiting concurrency in a DBMS implementation for production systems
DPDS '88 Proceedings of the first international symposium on Databases in parallel and distributed systems
A commentary on the POSTGRES rules system
ACM SIGMOD Record
Rule management and evaluation: an active DBMS perspective
ACM SIGMOD Record
The design and implementation of an extendible deductive database system
ACM SIGMOD Record
Set-oriented production rules in relational database systems
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
Efficiently monitoring relational databases
ACM Transactions on Database Systems (TODS)
The notions of consistency and predicate locks in a database system
Communications of the ACM
Implementation of integrity constraints and views by query modification
SIGMOD '75 Proceedings of the 1975 ACM SIGMOD international conference on Management of data
Proceedings from the Second International Conference on Expert Database Systems: Proceedings from the Second International Conference
RPL: An Expert System Language with Query Power
IEEE Expert: Intelligent Systems and Their Applications
A Production Rule-Based Approach to Deductive Databases
Proceedings of the Fourth International Conference on Data Engineering
Updating Derived Relations: Detecting Irrelevant and Autonomously Computable Updates
VLDB '86 Proceedings of the 12th International Conference on Very Large Data Bases
Multiple Query Processing in Deductive Databases using Query Graphs
VLDB '86 Proceedings of the 12th International Conference on Very Large Data Bases
Coupling production systems and database systems: a homogeneous approach
Coupling production systems and database systems: a homogeneous approach
The database group at National Technical University of Athens (NTUA)
ACM SIGMOD Record
Semantics for update rule programs and implementation in a relational database management system
ACM Transactions on Database Systems (TODS)
Eliminating costly redundant computations from SQL trigger executions
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
A Framework for Join Pattern Indexing in Intelligent Database Systems
IEEE Transactions on Knowledge and Data Engineering
Generalized Production Rules as a Basis for Integrating Active and Deductive Databases
IEEE Transactions on Knowledge and Data Engineering
E-DEVICE: An Extensible Active Knowledge Base System with Multiple Rule Type Support
IEEE Transactions on Knowledge and Data Engineering
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Methods for storing and manipulating large rule bases using a relational database management systems (DBMS) are discussed. An approach to decomposing and storing the condition elements in the antecedents of rules such as those used in production rule-based systems is presented. A set-oriented approach, DBCond, which uses a special data structure that is implemented using relations is proposed. A matching algorithm for DBCond uses the relational structures to efficiently identify rules whose antecedents are satisfied. The performance of DBCond is compared with that of DBRete, a DBMS implementation of the Rete match algorithm developed for use with the production rule language OPS5. DBCond is also compared with DBQuery, a method that is based on evaluating queries corresponding to the conditions in the antecedents of the rules. Improvements to the data structure and the algorithms of the DBCond method are described. An advantage of DBCond is that it is fully parallelizable, thus making it attractive for parallel computing environments.