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Common Questions on Indexes on Partitioned Table (Doc ID 1481609.1)

Last updated on NOVEMBER 07, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


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To answer common questions, provide directions to readers to the relevant information related to indexes on partitioned table.

Types of indexes of our focus in this article:

Questions and Answers

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In this Document
Questions and Answers
 What is local and global index?
 What is prefixed and non prefixed index?
 Can I create nonprefixed global partitioned index?
 Can I create UNIQUE partitioned index?
 Can I create partitioned bitmap index?
 What types of partitioning can I choose for a global index?
 Can i subpartition global index?
 Why indexes on partitioned table become UNUSABLE?
 What happens with my queries against partition table having unusable indexes?
 How can I prevent indexes become UNUSABLE during maintenance operation of table partitions?
 What are the performance implications of local indexes?
 What are the performance implications of global indexes?
 How to Determine Whether an Index is Global or Local
 Still have questions?

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