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The Third Workshop on Future Trends of Distributed Computing Systems (1992)
Taipei, Taiwan
April 14, 1992 to April 16, 1992
ISBN: 0-8186-2755-7
pp: 312-317
J. Tang , Dept. of Comput. Sci., Memorial Univ. of Newfoundland, St. John's, Nfld., Canada
ABSTRACT
A distributed heterogeneous database system is a collection of interconnected local database systems with diverse properties and local autonomy. In such a system, it is difficult to maintain consistency without compromising local autonomy. A global concurrency control protocol is proposed that maintains consistency without compromising local autonomy. The scheme is based on the observation that sufficient read operations attached to global transactions can prevent local schedules from diverging while keeping the database states intact. The protocol is simple and easy to implement. It does not require the knowledge about local concurrency control methods. Thus local concurrency control mechanisms can be changed without affecting the global concurrency control scheme.<>
INDEX TERMS
concurrency control, distributed databases, protocols
CITATION

J. Tang, "Using dummy reads to maintain consistency in heterogeneous database systems," The Third Workshop on Future Trends of Distributed Computing Systems(FTDCS), Taipei, Taiwan, , pp. 312-317.
doi:10.1109/FTDCS.1992.217479
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