SQL Performance Tuning

Author: Peter Gulutzan
Publisher: Addison-Wesley Professional
ISBN: 9780201791693
Format: PDF, ePub
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A very practical guide to making databases run faster and better. A poorly performing database application can cost each user time, and have an impact on other applications running on the same computer or the same network. This book will help DBAUs and programmers improve the performance of their databases.

Relational Database Index Design and the Optimizers

Author: Tapio Lahdenmaki
Publisher: John Wiley & Sons
ISBN: 0471721360
Format: PDF, ePub, Mobi
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Improve the performance of relational databases with indexes designed for today's hardware Over the last few years, hardware and software have advanced beyond all recognition, so it's hardly surprising that relational database performance now receives much less attention. Unfortunately, the reality is that the improved hardware hasn't kept pace with the ever-increasing quantity of data processed today. Although disk packing densities have increased enormously, making storage costs extremely low and sequential read very fast, random reads are still painfully slow. Many of the old design recommendations are therefore no longer valid-the optimal point of indexing has come a long way. Consequently many of the old problems haven't actually gone away-they have simply changed their appearance. This book provides an easy but effective approach to the design of indexes and tables. Using lots of examples and case studies, the authors describe how the DB2, Oracle, and SQL Server optimizers determine how to access data, and how CPU and response times for the resulting access paths can be quickly estimated. This enables comparisons to be made of the various designs, and helps you choose available choices for the most appropriate design. This book is intended for anyone who wants to understand the issues of SQL performance or how to design tables and indexes effectively. With this title, readers with many years of experience of relational systems will be able to better grasp the implications that have been brought into play by the introduction of new hardware.

Effective MySQL Optimizing SQL Statements

Author: Ronald Bradford
Publisher: McGraw Hill Professional
ISBN: 007178280X
Format: PDF, Docs
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The Essential Guide to SQL Statement Optimization Written by Oracle ACE Director and MySQL expert Ronald Bradford, Effective MySQL: Optimizing SQL Statements is filled with detailed explanations and practical examples that can be applied immediately to improve database and application performances. Featuring a step-by-step approach to SQL optimization, this Oracle Press book helps you to analyze and tune problematic SQL statements. Identify the essential analysis commands for gathering and diagnosing issues Learn how different index theories are applied and represented in MySQL Plan and execute informed SQL optimizations Create MySQL indexes to improve query performance Master the MySQL query execution plan Identify key configuration variables that impact SQL execution and performance Apply the SQL optimization lifecycle to capture, identify, confirm, analyze, and optimize SQL statements and verify the results Improve index utilization with covering indexes and partial indexes Learn hidden performance tips for improving index efficiency and simplifying SQL statements

Oracle SQL Tricks and Workarounds

Author: Zahar Hilkevich
Publisher: AuthorHouse
ISBN: 1463421354
Format: PDF, Kindle
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This book introduces a relatively new approach to mastering one’s Oracle SQL skills. This book will teach you how to leverage your existing Oracle SQL knowledge as well as how you can benefit from a variety of SQL tricks and techniques we present thereafter. This is a text book rather than a reference, and it aims to teach you how to become a better SQL specialist. Even though the recommendations found in this book may be applied to a variety of SQL flavors, Oracle SQL is the main subject of this book. Our goal was not to impress you with clever tricks and sophisticated techniques, but rather give you a roadmap to excellence in writing Oracle SQL queries. No doubt, this book presents tricks and classy approaches, which still serve the main goal – to let you master your Oracle SQL skills.

SQL Server 2008 Query Performance Tuning Distilled

Author: Sajal Dam
Publisher: Apress
ISBN: 1430219025
Format: PDF, ePub
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SQL Server 2008 Query Performance Tuning Distilled presents a direct trouble–shooting methodology for identifying poorly-performing stored procedures and queries, isolating the causes of that poor performance, and fixing the underlying problems. Each chapter is dedicated to one of the top causes of poorly performing queries and shows methods for identifying and dealing with the problems in that chapter’s domain. Emphasis is always put upon or placed upon practical methods that you can put to immediate use in your day–to–day work. SQL Server 2008 functionality, tips, and tricks are emphasized in each subject area. Emphasizes the practical. Does not bury readers in theory. Gives readers practical techniques to immediately apply in their daily work. Dedicates a chapter to each of the most common, performance–related problem areas. What you’ll learn Identify and fix poorly performing queries that are hurting your business. Read query execution plans and identify bottlenecks in performance. Record system performance metrics for trend analysis. Learn to design databases and write Transact–SQL code to avoid common problems. Understand what an index is, what it does, and how to build one. Use industry accepted best practices and understand how to develop your own to arrive at optimal database performance. Who this book is for SQL Server Query Performance Tuning Distilled is aimed at anyone writing business–critical Transact–SQL queries, and also at those responsible for the continued good performance of those queries. Developers, database administrators, business intelligence analysts, and any others who develop Transact–SQL queries will find this book an indispensable resource for getting the most out of what SQL Server 2008 has to offer.

SQL Antipatterns

Author: Bill Karwin
Publisher:
ISBN: 9781934356555
Format: PDF, Docs
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Illustrating some of the most common misconceptions and pitfalls software developers face using relational databases, this book helps readers use a database to produce the most efficient results, and turn sluggish, inflexible code into high-quality, reliable solutions.

SQL Tuning

Author: Dan Tow
Publisher: "O'Reilly Media, Inc."
ISBN: 9780596552367
Format: PDF, Mobi
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A poorly performing database application not only costs users time, but also has an impact on other applications running on the same computer or the same network. SQL Tuning provides an essential next step for SQL developers and database administrators who want to extend their SQL tuning expertise and get the most from their database applications.There are two basic issues to focus on when tuning SQL: how to find and interpret the execution plan of an SQL statement and how to change SQL to get a specific alternate execution plan. SQL Tuning provides answers to these questions and addresses a third issue that's even more important: how to find the optimal execution plan for the query to use.Author Dan Tow outlines a timesaving method he's developed for finding the optimum execution plan--rapidly and systematically--regardless of the complexity of the SQL or the database platform being used. You'll learn how to understand and control SQL execution plans and how to diagram SQL queries to deduce the best execution plan for a query. Key chapters in the book include exercises to reinforce the concepts you've learned. SQL Tuning concludes by addressing special concerns and unique solutions to "unsolvable problems."Whether you are a programmer who develops SQL-based applications or a database administrator or other who troubleshoots poorly tuned applications, SQL Tuning will arm you with a reliable and deterministic method for tuning your SQL queries to gain optimal performance.

Engineering Applications of Neural Networks

Author: Giacomo Boracchi
Publisher: Springer
ISBN: 3319651722
Format: PDF, ePub, Docs
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This book constitutes the refereed proceedings of the 18th International Conference on Engineering Applications of Neural Networks, EANN 2017, held in Athens, Greece, in August 2017. The 40 revised full papers and 5 revised short papers presented were carefully reviewed and selected from 83 submissions. The papers cover the topics of deep learning, convolutional neural networks, image processing, pattern recognition, recommendation systems, machine learning, and applications of Artificial Neural Networks (ANN) applications in engineering, 5G telecommunication networks, and audio signal processing. The volume also includes papers presented at the 6th Mining Humanistic Data Workshop (MHDW 2017) and the 2nd Workshop on 5G-Putting Intelligence to the Network Edge (5G-PINE).