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Published in:
Understand Relational Databases Read chapter Read first chapter

2019 | OriginalPaper | Chapter

17. Understand SQL Tuning Theories

Author : Jon Heller

Published in: Pro Oracle SQL Development

Publisher: Apress

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Abstract

Algorithm analysis was a useful guide for understanding the foundations of Oracle performance. Now we must turn to the more traditional techniques and theories of database performance. First we need to discuss performance issues from the end user’s perspective. Then we will discuss several popular approaches to performance tuning. But all roads eventually lead to SQL tuning. For effective SQL tuning we need to understand the importance of execution plans, the operations available in execution plans, cardinality, optimizer statistics, transformations, and dynamic optimization features.

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previous chapter Understand SQL Performance with Algorithm Analysis
next chapter Improve SQL Performance
Footnotes
1
I used uncommon FORMAT options and removed extraneous spaces so the execution plan lines will fit the width of the page. These results are another example of formatting that is necessary when publishing our results, but not something we should typically do.
 
Metadata
Title
Understand SQL Tuning Theories
Author
Jon Heller
Copyright Year
2019
Publisher
Apress
Book
Pro Oracle SQL Development

Print ISBN: 978-1-4842-4516-3

Electronic ISBN: 978-1-4842-4517-0

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-1-4842-4517-0_17

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