How to fix the Oracle error CLSR-01008: Error number encountered during querying for PMON status?

In this post, you’ll learn more about the Oracle ErrorCLSR-01008: Error number encountered during querying for PMON status with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CLSR-01008: Error number encountered during querying for PMON status

Reason for the Error CLSR-01008: Error number encountered during querying for PMON status

Unexpected error encountered when querying v$process for PMON.

How to fix the Error CLSR-01008: Error number encountered during querying for PMON status ?

You can fix this error in Oracle by following the below steps

Check alert log and connection to database.