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Author: John P. Freeman
Publisher: North Country Books
ISBN: 9780935272963
Category : Adirondack Park (N.Y.)
Languages : en
Pages : 0
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Author: John P. Freeman
Publisher: North Country Books
ISBN: 9780935272963
Category : Adirondack Park (N.Y.)
Languages : en
Pages : 0
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Book Description
Author: Louis Davidson
Publisher: Fastprint Publishing
ISBN: 9781906434472
Category : Computers
Languages : en
Pages : 344
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Book Description
Dynamic Management Views (DMVs) are a significant and valuable addition to the DBA's troubleshooting armory, laying bare previously unavailable information regarding the under-the-covers activity of your database sessions and transactions. Why, then, aren't all DBAs using them? Why do many DBAs continue to ignore them in favour of "tried and trusted" tools such as sp_who2, DBCC OPENTRAN, and so on, or make do with the "ready made" reports built into SSMS? Why do even those that do use the DMVs speak wistfully about "good old sysprocesses"? There seem to be two main factors at work. Firstly, some DBAs are simply unaware of the depth and breadth of the information that is available from the DMvs, or how it might help them troubleshoot common issues. This book investigates all of the DMVs that are most frequently useful to the DBA in investigating query execution, index usage, session and transaction activity, disk IO, and how SQL Server is using or abusing the operating system. Secondly, the DMVs have a reputation of being difficult to use. In the process of exposing as much useful data as possible, sysprocesses has been de-normalized, and many new views and columns have been added. This fact, coupled with the initially-baffling choices of what columns will be exposed where, has lead to some DBAs to liken querying DMVs to "collecting mystic spells." In fact, however, once you start to write your own scripts, you'll see the same tricks, and similar join patterns, being used time and again. As such, a relatively small core set of scripts can be readily adapted to suit any requirement. This book is here to de-mystify the process of collecting the information you need to troubleshoot SQL Server problems. It will highlight the core techniques and "patterns" that you need to master, and will provide a core set of scripts that you can use and adapt for your own systems, including how to: * Root out the queries that are causing memory or CPU pressure on your system * Investigate caching, and query plan reuse * Identify index usage patterns * Track fragmentation in clustered indexes and heaps * Get full details on blocking and blocked transactions, including the exact commands being executed, and by whom. * Find out where SQL Server is spending time waiting for resources to be released, before proceeding * Monitor usage and growth of tempdb The DMVs don't make existing, built-in, performance tools obsolete. On the contrary, they complement these tools, and offer a flexibility, richness and granularity that are simply not available elsewhere. Furthermore, you don't need to master a new GUI, or a new language in order to use them; it's all done in a language all DBAs know and mostly love: T-SQL.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 336
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Author: George A. Tsihrintzis
Publisher: Springer Science & Business Media
ISBN: 3319003720
Category : Technology & Engineering
Languages : en
Pages : 178
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Book Description
Multimedia services are now commonly used in various activities in the daily lives of humans. Related application areas include services that allow access to large depositories of information, digital libraries, e-learning and e-education, e-government and e-governance, e-commerce and e-auctions, e-entertainment, e-health and e-medicine, and e-legal services, as well as their mobile counterparts (i.e., m-services). Despite the tremendous growth of multimedia services over the recent years, there is an increasing demand for their further development. This demand is driven by the ever-increasing desire of society for easy accessibility to information in friendly, personalized and adaptive environments. In this book at hand, we examine recent Advances in Recommender Systems. Recommender systems are crucial in multimedia services, as they aim at protecting the service users from information overload. The book includes nine chapters, which present various recent research results in recommender systems. This research book is directed to professors, researchers, application engineers and students of all disciplines who are interested in learning more about recommender systems, advancing the corresponding state of the art and developing recommender systems for specific applications.
Author: Errol Lord
Publisher: Oxford University Press
ISBN: 0192546740
Category : Philosophy
Languages : en
Pages : 278
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Book Description
The Importance of Being Rational systematically defends a novel reasons-based account of rationality. The book's central thesis is that what it is for one to be rational is to correctly respond to the normative reasons one possesses. Errol Lord defends novel views about what it is to possess reasons and what it is to correctly respond to reasons. He shows that these views not only help to support the book's main thesis, they also help to resolve several important problems that are independent of rationality. The account of possession provides novel contributions to debates about what determines what we ought to do, and the account of correctly responding to reasons provides novel contributions to debates about causal theories of reacting for reasons. After defending views about possession and correctly responding, Lord shows that the account of rationality can solve two difficult problems about rationality. The first is the New Evil Demon problem. The book argues that the account has the resources to show that internal duplicates necessarily have the same rational status. The second problem concerns the deontic significance of rationality. Recently it has been doubted whether we ought to be rational. The ultimate conclusion of the book is that the requirements of rationality are the requirements that we ultimately ought to comply with. If this is right, then rationality is of fundamental importance to our deliberative lives.
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ISBN:
Category : Best books
Languages : en
Pages : 664
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Author: Catherine M. Otto
Publisher: Elsevier Health Sciences
ISBN: 0323186491
Category : Medical
Languages : en
Pages : 572
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Book Description
Textbook of Clinical Echocardiography, 5th Edition enables you to use echocardiography to its fullest potential in your initial diagnosis, decision making, and clinical management of patients with a wide range of heart diseases. World-renowned cardiologist Dr. Catherine M. Otto helps you master what you need to know to obtain the detailed anatomic and physiologic information that can be gained from the full range of echo techniques, from basic to advanced. Get straightforward explanations of ultrasound physics, image acquisition, and major techniques and disease categories - all with a practical, problem-based approach. Make the most of this versatile, low-cost, low-risk procedure with expert guidance from one of the foremost teachers and writers in the field of echocardiography. Know what alternative diagnostic approaches to initiate when echocardiography does not provide a definitive answer. Access the entire text online at www.expertconsult.com, as well as echo video recordings that correspond to the still images throughout the book. Acquire a solid foundation in the essentials of advanced echocardiography techniques such as contrast echo, 3D echo, myocardial mechanics, and intraoperative transesophageal echocardiography. Fully understand the use of echocardiography and its outcomes with key points that identify the must-know elements in every chapter, and state-of-the-art echo images complemented by full-color comparative drawings of heart structures. Familiarize yourself with new ASE recommendations for echocardiographic assessment of the right heart and 3D echocardiography, including updated tables of normal measurements.
Author: Makoto Onizuka
Publisher: Springer Nature
ISBN: 9819755727
Category :
Languages : en
Pages : 510
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ISBN:
Category :
Languages : en
Pages : 1042
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ISBN:
Category :
Languages : en
Pages : 480
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