Expert Oracle SQL: Optimization, Deployment, and Statistics - Brossura

Hasler, Tony

 
9781430259770: Expert Oracle SQL: Optimization, Deployment, and Statistics
Brossura
ISBN 10: 1430259779 ISBN 13: 9781430259770
Casa editrice: Apress, 2014

Sinossi

Expert Oracle SQL: Optimization, Deployment, and Statistics is about optimizing individual SQL statements, especially on production database systems. This Oracle-specific book begins by assuming you have already identified a particular SQL statement and are considering taking steps to improve its performance. The book describes a systematic process by which to diagnose a problem statement, identify a fix, and to implement that fix safely in a production system. You'll learn not only to improve performance when it is too slow, but also to stabilize performance when it is too variable. You'll learn about system statistics and how the Cost-Based Optimizer uses them to determine a suitable execution plan for a given statement. That knowledge provides the foundation from which to identify the root cause, and to stabilize and improve performance.

Next after identifying a problem and the underlying root cause is to put in place a solution. Expert Oracle SQL: Optimization, Deployment, and Statistics explains how to apply various remedies such as changing the SQL statement, adding hints, changing the physical design, and more, and how they can be brought to bear on fixing a problem once and for all.

Rolling a change out smoothly is an important topic when dealing with tuning and optimization. Expert Oracle SQL: Optimization, Deployment, and Statistics does not let you down in this critical area. The book contains two chapters of good information from an experienced professional on how to safely deploy changes into production so that your systems remaining running and available throughout the deployment process.

  • Describes a systematic approach to tuning Oracle SQL
  • Explains how things are supposed to work, what can go wrong, and how to fix it
  • Takes you through the steps needed to stabilize performance in your production systems

Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.

Informazioni sull'autore

Tony Hasler spends most workdays tuning database queries for financial institutions in the City of London from his office in Fife, occasionally looking over the Firth of Forth towards Edinburgh castle. Tony spent the first half of his 30 years in IT developing software, during some of which time he worked with the International Standards Organisation (ISO) on interoperability standards in transaction processing. He also filed a patent on optimisations in two-phase-commit logging mechanisms. For most of the last 15 years Tony has been solving performance issues for major financial institutions throughout Europe. He is a regular speaker at UK Oracle User Group conferences.

Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.

Editore
Apress
Data di pubblicazione
2014
Lingua
Inglese
ISBN 10 
1430259779
ISBN 13 
9781430259770
Rilegatura
Copertina flessibile
Numero edizione
1
Numero di pagine
624
Contatto del produttore
ProductSafety@springernature.com
ProductSafety@springernature.com

Poststr. 9
Darmstadt
64293
Germania

Altre edizioni note dello stesso titolo

9781502411549: Expert Oracle SQL: Optimization, Deployment, and Statistics

Edizione in evidenza

ISBN 10:  1502411547 ISBN 13:  9781502411549
Casa editrice: CreateSpace Independent Publishi..., 2014
Brossura