Download or read book Transaction Management in Federated Database Systems written by San-Yih Hwang and published by . This book was released on 1994 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Data Management Systems written by Bhavani Thuraisingham and published by CRC Press. This book was released on 1997-05-19 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the information contained in databases has become a critical resource in organizations, efficient access to that information and the ability to share it among different users and across different systems has become an urgent need. The interoperability of heterogeneous database systems-literally, the ability to access information between or among differing types of databases, is the topic of this timely book. In the last two decades, tremendous improvements in tools and technologies have resulted in new products that provide distributed data processing capabilities. This book describes these tools and emerging technologies, explaining the essential concepts behind the topics but focusing on practical applications. Selected products are discussed to illustrate the characteristics of the different technologies. This is an ideal source for anyone who needs a broad perspective on heterogeneous database integration and related technologies.
Download or read book Time Constrained Transaction Management written by Nandit R. Soparkar and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transaction processing is an established technique for the concurrent and fault tolerant access of persistent data. While this technique has been successful in standard database systems, factors such as time-critical applications, emerg ing technologies, and a re-examination of existing systems suggest that the performance, functionality and applicability of transactions may be substan tially enhanced if temporal considerations are taken into account. That is, transactions should not only execute in a "legal" (i.e., logically correct) man ner, but they should meet certain constraints with regard to their invocation and completion times. Typically, these logical and temporal constraints are application-dependent, and we address some fundamental issues for the man agement of transactions in the presence of such constraints. Our model for transaction-processing is based on extensions to established mod els, and we briefly outline how logical and temporal constraints may be ex pressed in it. For scheduling the transactions, we describe how legal schedules differ from one another in terms of meeting the temporal constraints. Exist ing scheduling mechanisms do not differentiate among legal schedules, and are thereby inadequate with regard to meeting temporal constraints. This provides the basis for seeking scheduling strategies that attempt to meet the temporal constraints while continuing to produce legal schedules.
Download or read book Enhanced Active Databases for Federated Information Systems written by Christopher Popfinger and published by GRIN Verlag. This book was released on 2007-09 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2006 in the subject Computer Science - Applied, grade: 1.0, University of Dusseldorf "Heinrich Heine", language: English, abstract: Federated information systems provide access to interrelated data that is distributed over multiple autonomous and heterogeneous data sources. The integration of these sources demands for flexible and extensible architectures that balance both, the highest possible autonomy and a reasonable degree of information sharing. In current federated information systems, the integrated data sources do only have passive functionality with regard to the federation. However, continuous improvements take the functionality of modern databases beyond former limits. The significant improvement, on which this work is based on, is the ability of modern active database systems to execute programs written in a standalone programming language as user-defined functions or stored procedures from within their database management systems. We introduce Enhanced Active Database Systems as a new subclass of active databases that are able to interact with other components of a federation using external program calls from within triggers. We present several concepts and architectures that are specifically developed for Enhanced Active Databases to improve interoperability and consistency in federated information systems. As the basic concept we describe Active Event Notifications to provide an information system with synchronous and asynchronous update notifications in real-time. Based on this functionality, Enhanced Active Databases are able to actively participate in global integrity maintenance executing partial constraint checks on interrelated remote data. Furthermore, we present an architecture for a universal wrapper component that especially supports Active Event Notifications, which makes it perfectly suitable for event-based federated systems with real-time data processing. This tightly coupled wrapper archite
Download or read book Transactions and Database Dynamics written by and published by . This book was released on 1999 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Architecture and Transaction Model for Large Federated Data Bases written by David Chazin and published by . This book was released on 1996 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Design and Analysis of New Techniques for Transaction Management in Database Systems written by Akhil Kumar and published by . This book was released on 1988 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Advanced Transaction Models for Federated Database Systems written by Kerstin Schwarz and published by . This book was released on 1997 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Heterogeneous and Autonomous Database Systems written by Ahmed K. Elmagarmid and published by Morgan Kaufmann. This book was released on 1999 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Overview of Multidatabase Systems: Past and Present / Athman Bouguettaya, Boualem Benatallah, Ahmed Elmagarmid / - Local Autonomy and Its Effects on Multidatabase Systems / Ahmed Elmagarmid, Weimin Du, Rafi Ahmed / - Semantic Similarities Between Objects in Multiple Databases / Vipul Kashyap, Amit Sheth / - Resolution of Representational Diversity in Multidatabase Systems / Joachim Hammer, Dennis McLeod / - Schema Integration: Past, Present, and Future / Sudha Ram, V. Ramesh / - Schema and Language Translation / Bogdan Czejdo, Le Gruenwald / - Multidatabase Languages / Paolo Missier, Marek Rusinkiewicz, W. Jin / - Interdependent Database Systems / George Karabatis, Marek Rusinkiewicz, Amit Sheth / - Correctness Criteria and Concurrency Control / Panos K. Chrysanthis, Krithi Ramamritham / - Transaction Management in Multidatabase Systems: Current Technologies and Formalisms / Ken Barker, Ahmed Elmagarmid / - Transaction-Based Recovery / Jari Veijalainen. ...
Download or read book Transactions and Database Dynamics written by Gunter Saake and published by Springer. This book was released on 2003-06-26 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: These post-proceedings contain the revised versions of the accepted papers of the international workshop \Transactions and Database Dynamics", which was the eighth workshop in a series focusing on foundations of models and languages for data and objects (FoMLaDO). Seven long papers and three short papers were accepted for inclusion in the proceedings. The papers address various issues of transactions and database dynamics: { criteria and protocols for global snapshot isolation in federated transaction management, { uni ed theory of concurrency control and replication control, { speci cation of evolving information systems, { inheritance mechanisms for deductive object databases with updates, { speci cation of active rules for maintaining 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 update queries as open nested transactions, and { execution guarantees and transactional processes in electronic commerce payments. In addition to the regular papers, there are papers resulting from two working groups. The rst working group paper discusses the basis for transactional c- putation. In particular, it addresses the speci cation of transactional software. The second working group paper focuses on transactions in electronic commerce applications. Among others, Internet transactions, payment protocols, and c- currency control and persistence mechanisms are discussed. Moreover, there is an invited paper by Jari Veijalainen which discusses tr- sactional aspects in mobile electronic commerce.
Download or read book Database Transaction Models for Advanced Applications written by Ahmed K. Elmagarmid and published by Morgan Kaufmann Publishers. This book was released on 1993 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection offers the reader a broad survey of the role of transaction processing in advanced computer applications. It contains an introduction to traditional transaction technology, and comprehensive descriptions of commercial systems and research projects. This volume will help anyone interested in keeping up with database applications and the potential for transaction processing systems to address the needs of OLTP, CAD, CASE, computer aided publishing, heterogeneous databases, active databases, communications, systems and other areas. For researchers, managers, software developers, professionals in the data processing fields, or anyone interested in a coherent overview of this new and fast growing area of computer science.
Download or read book Interconnecting Heterogeneous Information Systems written by Athman Bouguettaya and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information systems are the backbone of many of today's computerized applications. Distributed databases and the infrastructure needed to support them have been well studied. However, this book is the first to address distributed database interoperability by examining the successes and failures, various approaches, infrastructures, and trends of the field. A gap exists in the way that these systems have been investigated by real practitioners. This gap is more pronounced than usual, partly because of the way businesses operate, the systems they have, and the difficulties created by systems' autonomy and heterogeneity. Telecommunications firms, for example, must deal with an increased demand for automation while at the same time continuing to function at their current level. While academics are focusing on investigating differences between distributed databases, federated databases, heterogeneous databases, and, more generally, among loosely connected and tightly coupled systems, those who have to deal with real problems right away know that the only relevant research is the one that will ensure that their system works to produce reasonably correct results. Interconnecting Heterogeneous Information Systems covers the underlying principles and infrastructures needed to realize truly global information systems. The book discusses technologies related to middleware, the Web, workflows, transactions, and data warehousing. It also overviews architectures with a discussion of critical issues. The book gives an overview of systems that can be viewed as learning platforms. While these systems do not translate to successful commercial realities, they push the envelope in terms of research. Successful commercial systems have benefited from the experiments conducted in these prototypes. The book includes two case studies based on the authors' own work. Interconnecting Heterogeneous Information Systems is suitable as a textbook for a graduate-level course on Interconnecting Heterogeneous Information Systems, as well as a secondary text for a graduate-level course on database or information systems, and as a reference for researchers and practitioners in industry.
Download or read book A Concurrency Control Protocol for Federated Database Systems written by Shankar Pal and published by . This book was released on 1991 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "This paper proposes a concurrency control protocol for a federated database system. The correctness criterion used for global transactions is quasiserializability [2]. An execution order for global transactions is established in the system using atomic broadcast [5] and this order is imposed on the execution of transactions at all sites."
Download or read book Transaction Management written by D. Chorafas and published by Springer. This book was released on 1998-01-12 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an essential update for experienced data processing professionals, transaction managers and database specialists who are seeking system solutions beyond the confines of traditional approaches. It provides practical advice on how to manage complex transactions and share distributed databases on client servers and the Internet. Based on extensive research in over 100 companies in the USA, Europe, Japan and the UK, topics covered include : * the challenge of global transaction requirements within an expanding business perspective *how to handle long transactions and their constituent elements *possible benefits from object-oriented solutions * the contribution of knowledge engineering in transaction management * the Internet, the World Wide Web and transaction handling * systems software and transaction-processing monitors * OSF/1 and the Encina transaction monitor * active data transfers and remote procedure calls * serialization in a transaction environment * transaction locks, two-phase commit and deadlocks * improving transaction-oriented database management * the successful development of an increasingly complex transaction environment.
Download or read book Database and Applications Security written by Bhavani Thuraisingham and published by CRC Press. This book was released on 2005-05-26 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to provide an in-depth coverage of all the developments, issues and challenges in secure databases and applications. It provides directions for data and application security, including securing emerging applications such as bioinformatics, stream information processing and peer-to-peer computing. Divided into eight sections,
Download or read book Version Management in Federated Database Systems written by Martin Schönhoff and published by IOS Press. This book was released on 2002 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides the conceptual foundations for the extension of federated database technology with the management of versioned data. It determines the requirements of a versioned federation compared to an unversioned one, and then develops features to fulfil these requirements.
Download or read book Engineering Federated Information Systems written by S. Conrad and published by IOS Press. This book was released on 1999-05 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
