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The CORDS multidatabase project

G. K. Attaluri, D. P. Bradshaw, N. Coburn, P. A. Larson, P. Martin, A. Silberschatz, J. Slonim, Q. Zhu
1995 IBM Systems Journal  
distributed) transaction management, and interactions with component data sources.  ...  This paper provides an overview of the system architecture and describes the approaches taken in the following areas: management of catalog information, schema integration, global query optimization, (  ...  in this paper: Pravin Baliga (X.500 Catalog Interface), Lauri J.  ... 
doi:10.1147/sj.341.0039 fatcat:qwbj6vx4zfbt5ogd2hdxzngt3m

A Transaction Processing Model for the Mobile Data Access System [chapter]

K. Segun, A. R. Hurson, A. Spink
2001 Lecture Notes in Computer Science  
The proposed model extends the existing multidatabase system without any adverse effect to the preexisting local and global users.  ...  This is accomplished through the implementation of multi tiered mobile transaction proxies that manage the execution of mobile transactions on behalf of the mobile user.  ...  Multidatabase Systems A multidatabase system integrates pre-existing local databases to form a single integrated global distributed database system.  ... 
doi:10.1007/3-540-44743-1_11 fatcat:iahaxvienzexpedy44fakfcf3m

The Issues And Solutions Of Integrating DBMS To A Multi-DBMS

Leslie Leong
2011 Review of Business Information Systems (RBIS)  
Many organizations invest heavily in heterogeneous databases according to organizational functions. These heterogeneous databases are stand-alone systems that do not interact with one another.  ...  With a MDBMS, data sharing across organization reduces overheads and costs, thus, provides a competitive advantage to the global firms.  ...  Concurrency Multidatabase management systems must be able to run two or more transactions simultaneously. This ability is known as transaction concurrency (Bobak, 1996) .  ... 
doi:10.19030/rbis.v7i2.4536 fatcat:fllbsvomanhtlmyz6mk5ymjpge

Concurrency control and recovery of multidatabase work flows in telecommunication applications

W. Woody Jin, Marek Rusinkiewicz, Linda Ness, Amit Sheth
1993 Proceedings of the 1993 ACM SIGMOD international conference on Management of data - SIGMOD '93  
In a research and technology application project at Bellcore, we used multidatabase transactions to model multisystem workflows of telecommunication applications.  ...  During the project a prototype schedulerfor executing multidatabase transactions was developed.  ...  Flexible Transactions were introduced in [7, 101 to model global transactions in heterogeneous multidatabase systems.  ... 
doi:10.1145/170035.170133 dblp:conf/sigmod/JinRNS93 fatcat:f2tu6wysmzgp3nuvowf6gqzl4u

Concurrency control and recovery of multidatabase work flows in telecommunication applications

W. Woody Jin, Marek Rusinkiewicz, Linda Ness, Amit Sheth
1993 SIGMOD record  
In a research and technology application project at Bellcore, we used multidatabase transactions to model multisystem workflows of telecommunication applications.  ...  During the project a prototype schedulerfor executing multidatabase transactions was developed.  ...  Flexible Transactions were introduced in [7, 101 to model global transactions in heterogeneous multidatabase systems.  ... 
doi:10.1145/170036.170133 fatcat:5d5depuivvck5b7u6y2uar46vy

Transaction Management in a Mobile Data Access System [chapter]

K. SEGUN, A.R. HURSON, V. DESAI, A. SPINK, L.L. MILLER
2001 Annual Review of Scalable Computing  
As a result, the traditional notion of timely and reliable access to global information sources in a distributed system or multidatabase system is rapidly changing.  ...  Transaction processing and concurrency control issues are analyzed. Finally, a taxonomy for concurrency control algorithms for both multidatabases and MDAS environments is introduced.  ...  Multidatabase Transaction Processing Manager (MDSTPM): The model proposed in [50] augments the software component of the multidatabase system by adding a Global Interface Manager (GIM) that coordinates  ... 
doi:10.1142/9789812810182_0004 fatcat:4hzigjspfzarvlwxuzfosfaocy

Multidatabase and Interoperable Systems

A.R. Hurson, M.W. Bright, A.R. Hurson, M.W. Bright
1995 Integrated Computer-Aided Engineering  
Many approaches suggested new ideas of transaction management and explored new methods of defining correct concurrency based on the semantics of global applications.  ...  Multidatabase systems provide a uniform global database interface to exactly these types of systems.  ... 
doi:10.3233/ica-1995-2101 fatcat:qhwj2aelr5c2lpckw6632gszu4

Local Schemas Modifications Propagation and Maintenance of Metadata in Multidatabase System

Mohammad Ghulam Ali
2010 International Journal of Computer Applications  
an objected-oriented Global Schema in the multidatabase system.  ...  One of the challenging problems in the multidatabase systems is to find the most viable solution to the problem of interoperability of distributed heterogeneous autonomous local component databases.  ...  Layer 3 includes Multidatabase Management System (MDBMS), Global Schema and Global Directory/Dictionary/Metadata.  ... 
doi:10.5120/1112-1456 fatcat:na3hicgtkvdpjjowve3igjp33e

A Multidatabase System as 4-Tiered Client-Server Distributed Heterogeneous Database System [article]

Mohammad Ghulam Ali
2009 arXiv   pre-print
Application program running in an application server, which resides on top of the Global Database Management System, the third component of the system is a Global Database Management System and global  ...  Transaction submitted from client interface to a multidatabase system server through an application server will be decomposed into a set of sub queries and will be executed at various remote heterogeneous  ...  A multidatabase is composed by a global schema and Global Database Management System.  ... 
arXiv:0912.0579v1 fatcat:dz76xllegjfjvmo4do5b7cecgm

Database System Architecture – A Walk Through Time: From Centralized Platform to Mobile Computing – Keynote Address [chapter]

Ali R. Hurson, Yu Jiao
2005 Lecture Notes in Computer Science  
However, with the advances in technologies this monolithic and top down approach becomes insufficient.  ...  It also extensively discusses Heterogeneous Distributed Database Systems (HDDBS) and Mobile Data Access Systems (MDAS). Finally, it will address several research issues and their potential solutions.  ...  Management Concurrency control protocols in the face of global/global and global/local conflicts among transactions Security Potential conflicts between global security protocols and local security  ... 
doi:10.1007/11533962_1 fatcat:e36tkeizefbwbexyoqta7frf3i

Critical issues in multidatabase systems

Ahmed K. Elmagarmid, Marek Rusinkiewicz
1991 Information Sciences  
>S the directions of further research in the area of multidatabase systems.  ...  We concentrate on the problems of query processing and multidalabase transaction management and discuss solutions that were developed within both projects.  ...  In Section 3, we discuss some major problems related to the management of multidatabase transactions.  ... 
doi:10.1016/0020-0255(91)90090-h fatcat:cpnvunzqsfclljfp325egs3a7m

Transaction processing in mobile, heterogeneous database systems

J.B. Lim, A.R. Hurson
2002 IEEE Transactions on Knowledge and Data Engineering  
In a mobile computing environment, a potentially large number of users may simultaneously access the global data; therefore, there is a need to provide a means to allow concurrent management of transactions  ...  The locking tables are used to serialize global transactions, detect and remove global deadlocks.  ...  ACKNOWLEDGMENTS This work in part has been supported by the US Office of Naval Research under the contract N00014-02-1-0282.  ... 
doi:10.1109/tkde.2002.1047771 fatcat:gt2xwbvvqrf7rj2xggysesxsza

A view-based approach to relaxing global serializability in a multidatabase system

Evaggelia Pitoura, Aidong Zhang, Bharat Bhargava
1995 Proceedings of the fourteenth annual ACM symposium on Principles of distributed computing - PODC '95  
This criterion, caUed view-based two-level serializability, relaxes global serializabitity in multidatabase systems while respecting the autonomy of local database systems.  ...  The approach is based on relating transaction views of the database to the integrity constraints of the system.  ...  The purpose of a multidatabase system is to allow uniform access to the information stored in these component systems.  ... 
doi:10.1145/224964.225003 dblp:conf/podc/PitouraZB95 fatcat:bpyvy7ba3nehffply23zu545ca

Automating compensation in a multidatabase

Nodine, Zdonik
1994 Proceedings of the Twenty-Seventh Hawaii International Conference on System Sciences HICSS-94  
The second is in backing out the eflects of an atomic multidatabase transaction when some local database transaction commits before a global abort decision is made.  ...  We examine two areas of multidatabase transaction management where compensation is required. The first is implementing compensation as a recovery technique when an open nested transaction is aborted.  ...  We also examine compensation in two areas of multidatabase transaction management.  ... 
doi:10.1109/hicss.1994.323254 fatcat:rpu5ip6snnafdlrox6furifroe

The Pegasus heterogeneous multidatabase system

R. Ahmed, P. DeSmedt, W. Du, W. Kent, M.A. Ketabchi, W.A. Litwin, A. Rafii, M.-C. Shan
1991 Computer  
P egasus, a heterogeneous multidatabase management system being developed by the Database Technology Department at Hewlett-Packard Laboratories, responds to the need for effective access and management  ...  of shared data across in a wide range of applications.  ...  They semantics that are not provided in a can also play a role in assisting global transaction management by providing local system.  ... 
doi:10.1109/2.116885 fatcat:cvrmefbl5zcvjcvgoehwgreg5i
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