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Slow Query Against Dictionary View, Such as DBA_ALL_TABLES (Doc ID 2696268.1)

Last updated on OCTOBER 08, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

A simple query against a data-dictionary view is taking minutes to complete.

Examination of SQL trace data indicates that high I/O occurs at this line of the execution plan:

   INDEX SKIP SCAN I_COL1

Changes

 N/A

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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