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Distributed Database Systems, 1st Edition by Chhanda Ray
book

Distributed Database Systems, 1st Edition by Chhanda Ray

by Chhanda Ray
May 2024
Intermediate to advanced content levelIntermediate to advanced
325 pages
12h 2m
English
Pearson India
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
Distributed Concurrency Control
133
transaction that had read the data item, and the other is a write_timestamp value, which is the
timestamp value of the last transaction that had updated the data item. The implementation of
the basic TO algorithm for a transaction T in a DDBMS is described below.
The coordinating transaction manager assigns a timestamp value to the transaction T, say ts(T),
determines the sites where each data item is stored, and sends the relevant operations to these sites.
Let us consider that the transaction T requires to perform a read operation on a data item x located
at a remote site. The data item x has a read_timestamp ...
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Publisher Resources

ISBN: 9781282652521Publisher WebsitePurchase Link