On optimistic methods for concurrency control

Authors:
H. T. Kung;John T. Robinson
Affiliations:
-;-
Venue:
VLDB '79 Proceedings of the fifth international conference on Very Large Data Bases - Volume 5
Year:
1979

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Abstract

Most current approaches to concurrency control in database systems rely on locking of data objects as a control mechanism. In this paper, two families of non-locking concurrency controls are presented. The methods used are "optimistic" in the sense that they rely mainly on transaction backup as a control mechanism, "hoping" that conflicts between transactions will not occur. Applications where these methods should be more efficient than locking are discussed.