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The VLDB journal
This paper is concerned with the problem of integrating a number of existing, off-the-shelf local database systems into a muitidatabase system that maintains consistency in the face of concurrency and failures. The major difficulties in designing such systems stem from the requirements that local transactions be allowed to execute outside the muitidatabase system control, and that the various local database systems cannot participate in the execution of a global commit protocol. A scheme baseddoi:10.1007/bf01228706 fatcat:cc2hhudwjvgq3mi57aqfbzdo44