Results 51 to 60 of about 239,255 (120)

Multiversion Concurrency Control with the Precedence Graph Generation Algorithm

open access: gold, 2019
Prateek Vikram   +2 more
openalex   +1 more source

Multiversion concurrency control in objectbased systems

open access: yes, 1997
Current approaches to enhancing concurrency in database systems have focused on developing new transaction models that typically demand changes to either the atomicity, consistency, or isolation properties of the transactions themselves. Indeed much of this work has been insightful but most of these attempts suffer from being either computationally ...
openaire   +1 more source

Multiversion concurrency control for multilevel secure database systems

open access: closedProceedings. 1990 IEEE Computer Society Symposium on Research in Security and Privacy, 1990
Consideration is given to the application of multiversion schedulers in multilevel secure database management systems (MLS/DBMSs). Transactions are vital for MLS/DBMSs because they provide transparency to concurrency and failure. Concurrent execution of transactions may lead to contention among subjects for access to data, which in MLS/DBMSs may lead ...
T.F. Keefe, W.T. Tsai
openalex   +3 more sources

An Evaluation of Multiversion Concurrency Control forWeb Service Directories

open access: closedIEEE International Conference on Web Services (ICWS 2007), 2007
Web service directories are shared resources that have to accommodate a high number of concurrent read requests, whereas updates are relatively infrequent. To allow for the automatic composition of complex web services based on those contained in a directory, read requests may involve a series of queries which require a consistent view of the data.
Walter Binder   +3 more
openalex   +3 more sources

Performance of multiversion concurrency control algorithms in maintaining temporal consistency

open access: closedProceedings., Fourteenth Annual International Computer Software and Applications Conference, 2002
The authors present a model of typical hard real-time applications and the concepts of age and dispersion of data accessed by the real-time transactions. These are used to evaluate the performance of a class of multiversion lock-based concurrency control algorithms in maintaining temporal consistency of data in a real-time shared-data environment.
Xiaoyu Song, J.W.S. Liu
openalex   +3 more sources

A multiversion concurrency control algorithm for concurrent execution of partial update and bulk retrieval transactions

open access: closed[1991 Proceedings] Tenth Annual International Phoenix Conference on Computers and Communications, 2002
A novel multiversion concurrency control algorithm is presented which substantially improves concurrency between batch and online transactions. A bulk retrieval transaction which reads all data objects and partial update transactions which read and write a few data objects are studied as batch and online transactions, respectively.
Ryoji Kataoka   +2 more
openalex   +3 more sources

The correctness of concurrency control for multiversion database systems with limited number of versions

open access: closedProceedings of IEEE 9th International Conference on Data Engineering, 2002
The concurrency control problem for multiversion database systems (MVDBSs) with system-imposed upper bounds on the total number of data item versions stored in the database is considered. Concurrency control theory for MVDBSs is reviewed. The inadequacy of this theory for analyzing concurrency control algorithms for k-version database systems (KVDBSs ...
Tadeusz Morzy
openalex   +3 more sources

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