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You're reading from  Oracle Database 11gR2 Performance Tuning Cookbook

Product typeBook
Published inJan 2012
Reading LevelIntermediate
PublisherPackt
ISBN-139781849682602
Edition1st Edition
Languages
Java
Tools
Oracle Database
Concepts
Database Administration
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Author (1)
Ciro Fiorillo
Ciro Fiorillo
author image
Ciro Fiorillo

Ciro Fiorillo is an IT professional and consultant with experience of more than a decade in different roles (developer, analyst, DBA, project manager, data and software architect) among software industries. He has worked on different technologies and architectures, such as Oracle, SQL Server, Delphi, C# and .NET Framework, C/C++, Java, PHP, COBOL, Fortran, and Tibco. Ciro is currently employed as Lead Software and Data Architect with FinWin Srl, a software house specializing in banking and loans applications. As a freelancer he writes articles for websites and printed magazines about software and computing, participates in workshops, and teaches C++ and Fortran parallel programming with Intel Software tools. Ciro can be reached at ciro@cirofiorillo.com.
Read more about Ciro Fiorillo

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INDEX_STATS

This view collects information from index statistics (after an ANALYZE INDEX).

Fields

The most relevant view fields are as follows:

  • NAME: The name of the index

  • HEIGHT: The height of the B-tree index

  • BLOCKS: The number of allocated database blocks

  • BTREE_SPACE: The total space allocated

  • USED_SPACE: The total space used

  • DISTINCT_KEYS: The number of distinct keys in the index

  • OPT_CMPR_COUNT: The optimal key compression length

  • OPT_CMPR_PCTSAVE: Space saving corresponding to the adoption of the optimal key compression length

See also

  • The DBA_INDEXESsection in this appendix

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Oracle Database 11gR2 Performance Tuning Cookbook
Published in: Jan 2012Publisher: PacktISBN-13: 9781849682602
© 2012 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Ciro Fiorillo

Ciro Fiorillo is an IT professional and consultant with experience of more than a decade in different roles (developer, analyst, DBA, project manager, data and software architect) among software industries. He has worked on different technologies and architectures, such as Oracle, SQL Server, Delphi, C# and .NET Framework, C/C++, Java, PHP, COBOL, Fortran, and Tibco. Ciro is currently employed as Lead Software and Data Architect with FinWin Srl, a software house specializing in banking and loans applications. As a freelancer he writes articles for websites and printed magazines about software and computing, participates in workshops, and teaches C++ and Fortran parallel programming with Intel Software tools. Ciro can be reached at ciro@cirofiorillo.com.
Read more about Ciro Fiorillo

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