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Author: Alexander Thomasian
Publisher: Springer Science & Business Media
ISBN: 147572473X
Category : Computers
Languages : en
Pages : 152
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Book Description
Database Concurrency Control: Methods, Performance and Analysis is a review of developments in concurrency control methods for centralized database systems, with a quick digression into distributed databases and multicomputers, the emphasis being on performance. The main goals of Database Concurrency Control: Methods, Performance and Analysis are to succinctly specify various concurrency control methods; to describe models for evaluating the relative performance of concurrency control methods; to point out problem areas in earlier performance analyses; to introduce queuing network models to evaluate the baseline performance of transaction processing systems; to provide insights into the relative performance of transaction processing systems; to illustrate the application of basic analytic methods to the performance analysis of various concurrency control methods; to review transaction models which are intended to relieve the effect of lock contention; to provide guidelines for improving the performance of transaction processing systems due to concurrency control; and to point out areas for further investigation. This monograph should be of direct interest to computer scientists doing research on concurrency control methods for high performance transaction processing systems, designers of such systems, and professionals concerned with improving (tuning) the performance of transaction processing systems.
Author: Alexander Thomasian
Publisher: Springer Science & Business Media
ISBN: 147572473X
Category : Computers
Languages : en
Pages : 152
Get Book Here
Book Description
Database Concurrency Control: Methods, Performance and Analysis is a review of developments in concurrency control methods for centralized database systems, with a quick digression into distributed databases and multicomputers, the emphasis being on performance. The main goals of Database Concurrency Control: Methods, Performance and Analysis are to succinctly specify various concurrency control methods; to describe models for evaluating the relative performance of concurrency control methods; to point out problem areas in earlier performance analyses; to introduce queuing network models to evaluate the baseline performance of transaction processing systems; to provide insights into the relative performance of transaction processing systems; to illustrate the application of basic analytic methods to the performance analysis of various concurrency control methods; to review transaction models which are intended to relieve the effect of lock contention; to provide guidelines for improving the performance of transaction processing systems due to concurrency control; and to point out areas for further investigation. This monograph should be of direct interest to computer scientists doing research on concurrency control methods for high performance transaction processing systems, designers of such systems, and professionals concerned with improving (tuning) the performance of transaction processing systems.
Author: Paolo Bruni
Publisher: IBM Redbooks
ISBN: 0738435112
Category : Computers
Languages : en
Pages : 724
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Book Description
IBM® DB2® Version 10.1 for z/OS® (DB2 10 for z/OS or just DB2 10 throughout this book) is the fourteenth release of DB2 for MVSTM. It brings improved performance and synergy with the System z® hardware and more opportunities to drive business value in the following areas: Cost savings and compliance through optimized innovations DB2 10 delivers value in this area by achieving up to 10% CPU savings for traditional workloads and up to 20% CPU savings for nontraditional workloads, depending on the environments. Synergy with other IBM System z platform components reduces CPU use by taking advantage of the latest processor improvements and z/OS enhancements. Streamline security and regulatory compliance through the separation of roles between security and data administrators, column level security access, and added auditing capabilities. Business insight innovations Productivity improvements are provided by new functions available for pureXML®, data warehousing, and traditional online TP applications Enhanced support for key business partners that allow you to get more from your data in critical business disciplines like ERP Bitemporal support for applications that need to correlate the validity of data with time. Business resiliency innovations Database on demand capabilities to ensure that information design can be changed dynamically, often without database outages DB2 operations and utility improvements enhancing performance, usability, and availability by exploiting disk storage technology. The DB2 10 environment is available either for brand new installations of DB2, or for migrations from DB2 9 for z/OS or from DB2 UDB for z/OS Version 8 subsystems. This IBM Redbooks® publication introduces the enhancements made available with DB2 10 for z/OS. The contents help you understand the new functions and performance enhancements, start planning for exploiting the key new capabilities, and justify the investment in installing or migrating or skip migrating to DB2 10.
Author:
Publisher:
ISBN:
Category : Computer industry
Languages : en
Pages : 1242
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Book Description
Author: Diane Bullock
Publisher: Prentice Hall
ISBN:
Category : Computers
Languages : en
Pages : 552
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Book Description
"Artful Making" offers the first proven, research-based framework for engineering ingenuity and innovation. This book is the result of a multi-year collaboration between Harvard Business School professor Robert Austin and leading theatre director and playwright Lee Devin. Together, they demonstrate striking structural similarities between theatre artistry and production and today's business projects--and show how collaborative artists have mastered the art of delivering innovation "on cue," on immovable deadlines and budgets. These methods are neither mysterious nor flaky: they are rigorous, precise, and--with this book's help--absolutely learnable and reproducible. They rely on cheap and rapid iteration rather than on intensive up-front planning, and with the help of today's enabling technologies, they can be applied in virtually any environment with knowledge-based outputs. Moreover, they provide an overarching framework for leveraging the full benefits of today's leading techniques for promoting flexibility and innovation, from agile development to real options.
Author: Silvio Podcameni
Publisher: Prentice Hall
ISBN:
Category : Cross-platform software development
Languages : en
Pages : 616
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Book Description
This publication describes how you can use the IBM Distributed Relational Database Architecture (DRDA) to integrate IBM relational database products into a network. it is written primarily for customer personnel and IBM technical professionals with networking responsibilities in heterogeneous environments.
Author: Paolo Bruni
Publisher: IBM Redbooks
ISBN: 0738435716
Category : Computers
Languages : en
Pages : 422
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Book Description
DB2® 10 for z/OS can reduce the total DB2 CPU demand from 5-20%, compared to DB2 9, when you take advantage of all the enhancements. Many CPU reductions are built in directly to DB2, requiring no application changes. Some enhancements are implemented through normal DB2 activities through rebinding, restructuring database definitions, improving applications, and utility processing. The CPU demand reduction features have the potential to provide significant total cost of ownership savings based on the application mix and transaction types. Improvements in optimization reduce costs by processing SQL automatically with more efficient data access paths. Improvements through a range-list index scan access method, list prefetch for IN-list, more parallelism for select and index insert processing, better work file usage, better record identifier (RID) pool overflow management, improved sequential detection, faster log I/O, access path certainty evaluation for static SQL, and improved distributed data facility (DDF) transaction flow all provide more efficiency without changes to applications. These enhancements can reduce total CPU enterprise costs because of improved efficiency in the DB2 10 for z/OS. DB2 10 includes numerous performance enhancements for Large Objects (LOBs) that save disk space for small LOBs and that provide dramatically better performance for LOB retrieval, inserts, load, and import/export using DB2 utilities. DB210 can also more effectively REORG partitions that contain LOBs. This IBM Redbooks® publication® provides an overview of the performance impact of DB2 10 for z/OS discussing the overall performance and possible impacts when moving from version to version. We include performance measurements that were made in the laboratory and provide some estimates. Keep in mind that your results are likely to vary, as the conditions and work will differ. In this book, we assume that you are somewhat familiar with DB2 10 for z/OS. See DB2 10 for z/OS Technical Overview, SG24-7892-00, for an introduction to the new functions.
Author: Vijay Saradhi
Publisher: Trafford Publishing
ISBN: 1412003016
Category :
Languages : en
Pages : 451
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Book Description
This book teaches DB2 to Sybase professionals quickly and efficiently by leveraging their Sybase knowledge and experience. Adaptive Server Enterprise is a great product. However, it is an indisputable fact that DB2 is a market leader among relational database products. Market statistics over the past five years clearly reveal that there is an unmistakable upward trend in DB2 market share. As a Sybase professional, you might have felt its presence already. There is an urgent and immediate need for every database professional to learn DB2. The predominant reason for Sybase professionals' reluctance to learn DB2 is the perception that it is strange and complex. This perception is only partially true. DB2 is indeed vast and complex, and some of its manuals consist of 10,000+ pages. However, you donOt have to read and memorize these pages. You might not have realized it, but as a Sybase professional, you already know most of the complex and core concepts of DB2. All you need is a map between Sybase and DB2 concepts. This book gives you the precise map you need. The more you know about Sybase/ASE, the easier it is for you to learn DB2 from this book. For example, Sybase professionals already know about tables, views and indexes. Instead of spending several pages explaining a table and how it is used, we explain the functionality of DB2 tables and how they are different from Sybase tables. We concentrated less on DB2 base tables (which are similar to Sybase tables) and more on other new table concepts such as materialized query tables, replicated summary tables and typed tables. We tried to present the most relevant information, in Sybase terminology. We covered all the important aspects of DB2 in this book. And we cover more advanced topics such as data partitioning and replication in our companion book, Advanced DB2 Explained for Sybase Professionals. With this book, you are entitled to a CBT (DB2 Simulated Training for Sybase Professionals) at a nominal cost. We present several visual demonstrations of important concepts in this book as well as lots of bonus materials. This CBT contains important reference material that will be quite useful for a Sybase professional. For example, we present a Sybase-to-DB2 dictionary. If you know a Sybase function and would like to learn about an equivalent DB2 function, just type in the ASE function name and the dictionary will present you with an equivalent DB2 function. You will also find a DB2 command reference, catalog tables and syntax lookup. We intend to update the CBT several times a year, and as a customer, you are entitled to free downloads of the most current version from www.dbmigration.com. We thoroughly enjoyed developing this book and CBT. We hope you will find it equally enjoyable and enriching, and that you learn from it. Please send your comments and suggestions to
[email protected]. We will thank anyone who provides valuable suggestions with an autographed book, a complimentary copy of the CBT, and a mention of her/his name in subsequent editions.
Author: United States. Congress. House. Committee on Science. Subcommittee on Technology
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 288
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Book Description
Author: Paolo Bruni
Publisher: IBM Redbooks
ISBN: 0738439126
Category : Computers
Languages : en
Pages : 356
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Book Description
This IBM® Redbooks® publication discusses in detail the facilities of DB2® for z/OS®, which allow complete monitoring of a DB2 environment. It focuses on the use of the DB2 instrumentation facility component (IFC) to provide monitoring of DB2 data and events and includes suggestions for related tuning. We discuss the collection of statistics for the verification of performance of the various components of the DB2 system and accounting for tracking the behavior of the applications. We have intentionally omitted considerations for query optimization; they are worth a separate document. Use this book to activate the right traces to help you monitor the performance of your DB2 system and to tune the various aspects of subsystem and application performance.
Author: Teresa Hopper
Publisher: Prentice Hall
ISBN:
Category : Computers
Languages : en
Pages : 512
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Book Description
