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ORA-26027: DBA_HIST_ACTIVE_SESS_HISTORY is Blank for Certain Snapshots Due to Unusable Indexes (Doc ID 2989250.1)

Last updated on JULY 20, 2024

Applies to:

Oracle Database - Enterprise Edition - Version 19.20.0.0.0 and later
Oracle Database Cloud Exadata Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.

Symptoms

AWR snapshots are getting generated but there is no data for latest snapshots in the DBA_HIST_ACTIVE_SESS_HISTORY.

For example:

Note - Index name could be different in other Databases.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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