How to fix the Oracle error ORA-25502: concurrent ALTER SYSTEM QUIESCE/UNQUIESCE command is running?

In this post, you’ll learn more about the Oracle ErrorORA-25502: concurrent ALTER SYSTEM QUIESCE/UNQUIESCE command is running with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-25502: concurrent ALTER SYSTEM QUIESCE/UNQUIESCE command is running

Reason for the Error ORA-25502: concurrent ALTER SYSTEM QUIESCE/UNQUIESCE command is running

There is a concurrent ALTER SYSTEM QUIESCE RESTRICTED or ALTER SYSTEM UNQUIESCE command running in the system.

How to fix the Error ORA-25502: concurrent ALTER SYSTEM QUIESCE/UNQUIESCE command is running ?

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

Contact the database administrator who is responsible for the concurrent command.