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Practical coverage of the two most recent releases of the Informix database server, versions 8 and 7
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.
This IBM® Redbooks® publication addresses performance tuning topics to help leverage the virtualization strengths of the POWER® platform to solve clients' system resource utilization challenges, and maximize system throughput and capacity. We examine the performance monitoring tools, utilities, documentation, and other resources available to help technical teams provide optimized business solutions and support for applications running on IBM POWER systems' virtualized environments. The book offers application performance examples deployed on IBM Power SystemsTM utilizing performance monitoring tools to leverage the comprehensive set of POWER virtualization features: Logical Partitions (LPARs), micro-partitioning, active memory sharing, workload partitions, and more. We provide a well-defined and documented performance tuning model in a POWER system virtualized environment to help you plan a foundation for scaling, capacity, and optimization . This book targets technical professionals (technical consultants, technical support staff, IT Architects, and IT Specialists) responsible for providing solutions and support on IBM POWER systems, including performance tuning.
Tuning your database for optimal performance means more than following a few short steps in a vendor-specific guide. For maximum improvement, you need a broad and deep knowledge of basic tuning principles, the ability to gather data in a systematic way, and the skill to make your system run faster. This is an art as well as a science, and Database Tuning: Principles, Experiments, and Troubleshooting Techniques will help you develop portable skills that will allow you to tune a wide variety of database systems on a multitude of hardware and operating systems. Further, these skills, combined with the scripts provided for validating results, are exactly what you need to evaluate competing database products and to choose the right one. - Forward by Jim Gray, with invited chapters by Joe Celko and Alberto Lerner - Includes industrial contributions by Bill McKenna (RedBrick/Informix), Hany Saleeb (Oracle), Tim Shetler (TimesTen), Judy Smith (Deutsche Bank), and Ron Yorita (IBM) - Covers the entire system environment: hardware, operating system, transactions, indexes, queries, table design, and application analysis - Contains experiments (scripts available on the author's site) to help you verify a system's effectiveness in your own environment - Presents special topics, including data warehousing, Web support, main memory databases, specialized databases, and financial time series - Describes performance-monitoring techniques that will help you recognize and troubleshoot problems
Covers key performance issues related to using leading databases on Sun servers for system administrators and database programmers. This book brings together best-practice guidelines for every aspect of database tuning on Sun servers.
Presents an ideal mix of theory and practice, which allows the reader to understand the principle behind the application.; Coverage of performance tuning of datawarehouses offers readers the principles and tools they need to handle large reporting databases.; Material can also be used in a non-Oracle environment; Highly experienced author.
Designed as a companion volume to the INFORMIX Guide to SQL: Tutorial, this comprehensive reference covers the Structured Query Language (SQL) as it is implemented in Informix products. KEY TOPICS: Outlines the structure and contents of the demonstration database (stores5) and explains the 21 Informix system catalog tables that describe that structure; defines the column data types supported by Informix products and explains data type conversion techniques; describes the various environment variables that can or should be set to properly use Informix products; explains error handling, the system descriptor area and the SQL Descriptor Area (sqlda); details the workings of all the SQL statements supported by Informix products with step-by-step diagrams explaining every clause of each SQL statement; and shows how to create and use stored procedures. MARKET: A reference to SQL for those who already know how to use computers and who rely on them in their daily work.
As long as there's been a Web, people have been trying to make it faster. The maturation of the Web has meant more users, more data, more features, and consequently longer waits on the Web. Improved performance has become a critical factor in determining the usability of the Web in general and of individual sites in particular.Web Performance Tuning, 2nd Edition is about getting the best possible performance from the Web. This book isn't just about tuning web server software; it's also about streamlining web content, getting optimal performance from a browser, tuning both client and server hardware, and maximizing the capacity of the network itself.Web Performance Tuning hits the ground running, giving concrete advice for quick results -- the "blunt instruments" for improving crippled performance right away. The book then shifts gears to give a conceptual background of the principles of computing performance. The latter half of the book examines each element of a web transaction -- from client to network to server -- to find the weak links in the chain and show how to strengthen them.In this second edition, the book has been significantly expanded to include: New chapters on Web site architecture, security, reliability, and their impact on performance Detailed discussion of scalability of Java on multi-processor servers Perl scripts for writing web performance spiders that handle logins, cookies, SSL, and more Detailed instructions on how to use Perl DBI and the open source program gnuplot to generate performance graphs on the fly Coverage of rstat, a Unix-based open source utility for gathering performance statistics remotely In addition, the book includes many more examples and graphs of real-world performance problems and their solutions, and has been updated for Java 2.This book is for anyone who has waited too long for a web page to display, or watched the servers they manage slow to a crawl. It's about making the Web more usable for everyone.
Designed to help ease novice Informix Online 5.0 database administrators comfortably into the job, this innovative guidebook pulls together information that is scattered across volumes of system documentation and that is based on first-hand experience in the workplace. It covers all aspects of day-to-day database administration, with samples of source code and tips on using utilities to monitor and tune the database.