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Query On V$encrypted_tablespaces Is Very Slow During TTS Export (Doc ID 2785910.1)

Last updated on JUNE 29, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

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ACTUAL BEHAVIOR
---------------
Query on v$encrypted_tablespaces is very slow.

Query "select count(*) from V$encrypted_tablespaces" takes very long and degrades Transportable tablespace metadata export even after gathering fixed_objects_Stats.

The execution plan for v$encrypted tablespace query.

Plan hash value: 4135719268
 
-----------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-----------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 74 | 1 (100)| 00:00:01 |
|* 1 | FIXED TABLE FULL| X$KCBTEK | 1 | 74 | 1 (100)| 00:00:01 |
-----------------------------------------------------------------------------

Cause

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In this Document
Symptoms
Cause
Solution
References


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