On concurrency control in multidatabase systems

Ming Chuan Wu, Chiang Lee

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


A multidatabase system is a system that supports data access to a collection of preexisting autonomous database systems. Concurrency control in such an environment is much more difficult in nature than that in centralized or distributed (homogeneous) database systems. Many factors, especially the autonomies, bring difficulties to it. In this paper, we classify the multidatabase environment into value independent and value dependent ones, and discuss concurrency control mechanisms in these environments. We show that in the value independent environment, the task of concurrency control is resolvable by utilizing conventional concurrency control schemes. As for value dependent environment, we propose a general protocol which is deadlock free and preserves the local autonomy to solve the problems.

Original languageEnglish
Pages (from-to)386-391
Number of pages6
JournalProceedings - IEEE Computer Society's International Computer Software & Applications Conference
Publication statusPublished - 1994
EventProceedings of the 18th Annual International Computer Software & Applications Conference (COMPSAC 94) - Taipei, Taiwan
Duration: 1994 Nov 91994 Nov 11

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Science Applications


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