DB2 SQL Tuning Tips for z/OS Developers (IBM Press)

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9780133038460: DB2 SQL Tuning Tips for z/OS Developers (IBM Press)

The Definitive Solutions-Oriented Guide to IBM® DB2® for z/OS®: Now Fully Updated for Both v9 and v10!

The largest database tuning performance gains can often be obtained from tuning application code, and applications that use SQL to retrieve data are the best candidates for tuning. This well-organized, easy-to-understand reference brings together more than 100 SQL-related skills and techniques that any developer can use to build and optimize DB2 applications for consistently superior performance.

DB2 tuning expert Tony Andrews (“Tony the Tuner”) draws on more than 20 years of DB2-related experience, empowering you to take performance into your own hands, whether you’re writing new software or tuning existing systems. Tony shows you exactly how to clear bottlenecks, resolve problems, and improve both speed and reliability.

This book fully reflects the latest SQL programming best practices for DB2 V9 and DB2 V10 on z/OS: techniques that are taught in no other book and are rarely covered in general DB2 SQL courses. Drawing on his extensive consulting experience and highly praised training with Themis Inc., Tony also presents practical checklists and an invaluable 15-step methodology for optimizing virtually any DB2 application.

Coverage includes

  • Empowering developers on knowing what to do and where to look in resolving performance problems in queries or programs
  • Providing many programming and SQL coding examples
  • Establishing standards and guidelines that lead to high-performance SQL
  • Implementing time-efficient code walkthroughs to ensure that your standards are followed
  • Focusing on the small number of SQL statements that consume the most resources
  • Identifying simple solutions that deliver the most sizable benefits
  • Optimizing performance by rewriting query predicates more efficiently
  • Providing a better understanding of SQL optimization and Runstat statistics
  • Recognizing opportunities to tweak your code more effectively than the Optimizer
  • Optimizing SQL code with COBOL applications
  • Efficiently checking for the existence of data, rows, or tables
  • Using Runstats’ newest capabilities to consistently optimize paths to data

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About the Author:

Tony Andrews has more than 23 years’ experience in the development of IBM DB2 relational database applications. Most of this time, he has provided development and consulting services to Fortune 500 companies and government agencies. Tony has written literally thousands of queries and programs during his development years, and he has also served as a DB2 database analyst. For the past 10 years, Tony has been splitting his time between consulting engagements and training. His main focus is to teach today’s developers the ways of RDMS application design, development, and SQL programming— always with a special emphasis on improving performance. Tony’s training, consulting, and speaking engagements are through his employer, Themis, Inc., an onsite and virtual instructor-led, hands-on IT training company recognized internationally. It offers more than 400 IT courses and helps to support International DB2 Users Group North America (IDUG NA) and Europe, Middle East, and Africa (IDUG EMEA), along with many DB2 user groups.

Tony is a current IBM champion and regular lecturer at industry conferences and local user groups. You may have seen him present at such events as IDUG NA and EMEA. He is well known for his “Top 25+ Tuning Tips for Developers” presentation.

Tony graduated from Ohio State University with a major in business and a minor in mathematical statistics. He currently resides in Dublin, Ohio.

"Sobre este título" puede pertenecer a otra edición de este libro.

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Descripción Pearson Education (US), United States, 2013. Paperback. Estado de conservación: New. Reprint. Language: English . Brand New Book. The Definitive Solutions-Oriented Guide to IBM(R) DB2(R) for z/OS(R): Now Fully Updated for Both v9 and v10! The largest database tuning performance gains can often be obtained from tuning application code, and applications that use SQL to retrieve data are the best candidates for tuning. This well-organized, easy-to-understand reference brings together more than 100 SQL-related skills and techniques that any developer can use to build and optimize DB2 applications for consistently superior performance. DB2 tuning expert Tony Andrews ( Tony the Tuner ) draws on more than 20 years of DB2-related experience, empowering you to take performance into your own hands, whether you re writing new software or tuning existing systems. Tony shows you exactly how to clear bottlenecks, resolve problems, and improve both speed and reliability. This book fully reflects the latest SQL programming best practices for DB2 V9 and DB2 V10 on z/OS: techniques that are taught in no other book and are rarely covered in general DB2 SQL courses. Drawing on his extensive consulting experience and highly praised training with Themis Inc., Tony also presents practical checklists and an invaluable 15-step methodology for optimizing virtually any DB2 application. Coverage includes * Empowering developers on knowing what to do and where to look in resolving performance problems in queries or programs* Providing many programming and SQL coding examples* Establishing standards and guidelines that lead to high-performance SQL* Implementing time-efficient code walkthroughs to ensure that your standards are followed* Focusing on the small number of SQL statements that consume the most resources* Identifying simple solutions that deliver the most sizable benefits* Optimizing performance by rewriting query predicates more efficiently* Providing a better understanding of SQL optimization and Runstat statistics* Recognizing opportunities to tweak your code more effectively than the Optimizer* Optimizing SQL code with COBOL applications* Efficiently checking for the existence of data, rows, or tables* Using Runstats newest capabilities to consistently optimize paths to data. Nº de ref. de la librería AAC9780133038460

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Tony Andrews
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Descripción Pearson Education (US), United States, 2013. Paperback. Estado de conservación: New. Reprint. Language: English . Brand New Book. The Definitive Solutions-Oriented Guide to IBM(R) DB2(R) for z/OS(R): Now Fully Updated for Both v9 and v10! The largest database tuning performance gains can often be obtained from tuning application code, and applications that use SQL to retrieve data are the best candidates for tuning. This well-organized, easy-to-understand reference brings together more than 100 SQL-related skills and techniques that any developer can use to build and optimize DB2 applications for consistently superior performance. DB2 tuning expert Tony Andrews ( Tony the Tuner ) draws on more than 20 years of DB2-related experience, empowering you to take performance into your own hands, whether you re writing new software or tuning existing systems. Tony shows you exactly how to clear bottlenecks, resolve problems, and improve both speed and reliability. This book fully reflects the latest SQL programming best practices for DB2 V9 and DB2 V10 on z/OS: techniques that are taught in no other book and are rarely covered in general DB2 SQL courses. Drawing on his extensive consulting experience and highly praised training with Themis Inc., Tony also presents practical checklists and an invaluable 15-step methodology for optimizing virtually any DB2 application. Coverage includes * Empowering developers on knowing what to do and where to look in resolving performance problems in queries or programs* Providing many programming and SQL coding examples* Establishing standards and guidelines that lead to high-performance SQL* Implementing time-efficient code walkthroughs to ensure that your standards are followed* Focusing on the small number of SQL statements that consume the most resources* Identifying simple solutions that deliver the most sizable benefits* Optimizing performance by rewriting query predicates more efficiently* Providing a better understanding of SQL optimization and Runstat statistics* Recognizing opportunities to tweak your code more effectively than the Optimizer* Optimizing SQL code with COBOL applications* Efficiently checking for the existence of data, rows, or tables* Using Runstats newest capabilities to consistently optimize paths to data. Nº de ref. de la librería AAC9780133038460

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