V$SQL_MONITOR View Returns No Rows (0 ROWS) on 12.1.0.2 (Doc ID 2438466.1)

Last updated on APRIL 17, 2023

Applies to:

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

On 12.1.0.2, not able to see real time SQL monitoring using v$sql_monitor:

Example:
SQL> SELECT * FROM v$sql_monitor;
no rows selected
V$sql_monitor contains no rows even when /*+ MONITOR */ hint is used to turn on SQL monitoring for a SQL statement:

Example:
SQL> select /*+ monitor */ * from ...
SQL> SELECT * FROM v$sql_monitor;
The number of CPUs (CPU_COUNT)is not large that sometimes causes this issue per following bugs:

<Document 2354130.1> V$sql_monitor Has No Data
<Document 1959699.1> V$SQL_MONITOR View Does not Return Rows When CPU_COUNT=1024

NONE

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In this Document

Symptoms

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