Concurrency control and recovery in database systems
Concurrency control and recovery in database systems
Triggered real-time databases with consistency constraints
Proceedings of the sixteenth international conference on Very large databases
Scheduling real-time transactions: a performance evaluation
ACM Transactions on Database Systems (TODS)
Distributed and Parallel Databases - Special issue: Research topics in distributed and parallel databases
Predictability and consistency in real-time database systems
Advances in real-time systems
A study of two transaction-processing architectures for distributed real-time data base systems
Journal of Systems and Software
Applying update streams in a soft real-time database system
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
Information Systems - Special issue on real-time database systems
Impact of high speed network on performance of real-time concurrency control protocol
Journal of Systems Architecture: the EUROMICRO Journal - Special double issue: real-time systems
Integrating temporal, real-time, an active databases
ACM SIGMOD Record
DeeDS towards a distributed and active real-time database system
ACM SIGMOD Record
Priority assignment in real-time active databases
PDIS '94 Proceedings of the third international conference on on Parallel and distributed information systems
Active Database Systems: Triggers and Rules for Advanced Database Processing
Active Database Systems: Triggers and Rules for Advanced Database Processing
Temporal and Real-Time Databases: A Survey
IEEE Transactions on Knowledge and Data Engineering
The Starburst Active Database Rule System
IEEE Transactions on Knowledge and Data Engineering
Building an Integrated Active OODBMS: Requirements, Architecture, and Design Decisions
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
Priority assignment in real-time active databases
The VLDB Journal — The International Journal on Very Large Data Bases
Scheduling transactions with temporal constraints: exploiting data semantics
RTSS '96 Proceedings of the 17th IEEE Real-Time Systems Symposium
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A Distributed Real-time Active Database System reacts to the critical events occurred in the external environment by triggering of transactions. In this paper, the priority and deadline assignment to triggered transactions under two coupling modes, the deferred and immediate, in a DRTADBS is discussed. A new approach, the data state dependent (DSD) is proposed to assign criticality to the triggered transactions, respectively. In the DSD approach, the criticality of a triggered transaction is defined according to the state of the temporal data object which is responsible for its triggering. The objective of the DSD approach is to increase the number of commit achieved by the triggered transactions especially the more critical ones. The performance of these two approaches under the two coupling modes has been investigated. The results show that the DSD approach is more effective under the immediate coupling mode than under the deferred coupling mode due to the late creation of the triggered transactions under the deferred coupling mode.