Download Transactions and Database Dynamics: 8th International by Ralf Schenkel, Gerhard Weikum, Norbert Weißenberg, Xuequn Wu PDF

By Ralf Schenkel, Gerhard Weikum, Norbert Weißenberg, Xuequn Wu (auth.), Gunter Saake, Kerstin Schwarz, Can Türker (eds.)

These post-proceedings comprise the revised types of the accredited papers of the foreign workshop \Transactions and Database Dynamics", which used to be the 8th workshop in a chain targeting foundations of versions and languages for info and items (FoMLaDO). Seven lengthy papers and 3 brief papers have been authorized for inclusion within the complaints. The papers tackle numerous problems with transactions and database dynamics: { standards and protocols for worldwide picture isolation in federated transaction administration, { uni ed conception of concurrency keep an eye on and replication regulate, { speci cation of evolving details platforms, { inheritance mechanisms for deductive item databases with updates, { speci cation of lively ideas for conserving database consistency, { integrity checking in subtransactions, { open nested transactions for multi-tier architectures, { declarative speci cation of transactions with static and dynamic integrity constraints, { logic-based speci cation of replace queries as open nested transactions, and { execution promises and transactional techniques in digital trade funds. as well as the typical papers, there are papers due to operating teams. The rst operating workforce paper discusses the root for transactional c- putation. specifically, it addresses the speci cation of transactional software program. the second one operating staff paper makes a speciality of transactions in digital trade purposes. between others, web transactions, fee protocols, and c- forex regulate and endurance mechanisms are mentioned. in addition, there's an invited paper through Jari Veijalainen which discusses tr- sactional points in cellular digital commerce.

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Extra resources for Transactions and Database Dynamics: 8th International Workshop on Foundations of Models and Languages for Data and Objects Dagstuhl Castle, Germany, September 27–30, 1999 Selected Papers

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References 1. J. K. Bennet, J. B. Carter, and W. Zwaenepoel. Munin: Distributed Shared Memory Based on Type-Specific Memory Coherence. In Proc. of the 2nd ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, pages 168–176, ACM Press, 1990. 44 E. Kindler 2. P. A. Bernstein, V. Hadzilacos, and N. Goodman. Concurrency Control and Recovery in Database Systems. Addison-Wesley, 1987. 3. M. Censier and P. Feautrier. A New Solution to Coherence Problems in Multicache Systems. IEEE Transactions on Computers, C-27(12), 1978.

6. In this linear arrangement, transaction causality and data causality are not changed—other causalities, however, have been omitted because these causalities are irrelevant for serializability. Since we did not change transaction causality and data causality, the values written and read by the events are still the same than in the original execution. In order to check serializability, we need to show that the values returned by read events in this execution (according to data causality) are the same as in a sequential execution of the events in the order of the linear arrangement on a conventional memory: We say that data causality is compatible with the linear arrangement if for each pair of a write event e on some object Serializability, Concurrency Control, and Replication Control 35 R[x] W[y] C R[x] W[x] R[x] C R[y] W[x] R[x] C Fig.

Second read event on object x of transaction C in our example). 3 Discussion Readers familiar to the classical serializability theorem might be puzzled about the three items in the equivalent characterization of serializability because there is only one (acyclicity of the serialization graph) in the classical serializability theorem. The reason is the slightly more general scope of our definition of serializability. The second item deals with the correct recovery of aborted (not committed) transactions which is ignored in classical serializability theory.

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