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DBA_TEMP_FREE_SPACE Shows Wrong Information on 18c (Doc ID 2633068.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 18.5.0.0.0 and later
Information in this document applies to any platform.

Symptoms

++ dba_temp_free_space showing wrong information for temp tablespace in 18c and 19c multitenant environment.

++ Issue does not happen in 18c/19c non-multitenant environment. 

++ After upgrade to 18c the Temporary tablespace continues to grow.

Before upgrade temp tablespace was < 10GB.

Has now grown to 35+ GB.

select (TABLESPACE_SIZE/1048576)/1024 ,(ALLOCATED_SPACE/1048576)/1024,(FREE_SPACE/1048576)/1024 from dba_temp_free_space;

(TABLESPACE_SIZE/1048576)/1024 (ALLOCATED_SPACE/1048576)/1024 (FREE_SPACE/1048576)/1024
------------------------------ ------------------------------ -------------------------
  35.9972076 35.9972076 10.9228516



Changes

Upgrade to 18c or 19c

New database creation in 18c or 19c 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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