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    Concurrency Control Protocol for Nested Transactions in Real-Time Databases

    Advances in Databases and Information Systems '97

    St Petersburg, 2nd - 5th September 1997


    E. Pavlova & I. Nekrestyanov


    In this paper we consider real-time concurrency control for the nested transaction model. We analyze problems that have pure optimistic and pessimistic approaches.

    As the solution we propose a hybrid concurrency control algorithm which acts as an optimistic for transactions from different transaction trees and as pessimistic inside a single transaction tree.


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