Dynamic Multiversion Control in Multilevel Security Environments


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 4, No. 3, pp. 659-669, Mar. 1997
10.3745/KIPSTE.1997.4.3.659,   PDF Download:

Abstract

Security as well as consistency of data is very important issue in database security. Thus, the serializability of transactions must be maintained and particularly convert channel not caused between a high-level transaction and a low-level one. In this paper, we propose a secure transaction management algorithm using dynamic version control method that can slove disk space overhead to maintain multiversion and the problem that transactions read too old versions when two versions are maintained. Disk space overhead can be sloved by properly creating versions and dynamically maintaining the number of versions and the problem for reading too old version can be solved by having transactions read versions as recent as possible.


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Cite this article
[IEEE Style]
C. H. Cheol and H. B. Hyun, "Dynamic Multiversion Control in Multilevel Security Environments," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 4, no. 3, pp. 659-669, 1997. DOI: 10.3745/KIPSTE.1997.4.3.659.

[ACM Style]
Chung Hyun Cheol and Hwang Bu Hyun. 1997. Dynamic Multiversion Control in Multilevel Security Environments. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 4, 3, (1997), 659-669. DOI: 10.3745/KIPSTE.1997.4.3.659.