How to fix the error ORA-00494: enqueue string held for too long (more than string seconds) by ‘inst string, osid string’?

In this post, you’ll learn more about the Oracle ErrorORA-00494: enqueue string held for too long (more than string seconds) by ‘inst string, osid string’ with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00494: enqueue string held for too long (more than string seconds) by ‘inst string, osid string’

Reason for the Error ORA-00494: enqueue string held for too long (more than string seconds) by ‘inst string, osid string’

The specified process did not release the enqueue within the maximum allowed time.

How to fix the Error ORA-00494: enqueue string held for too long (more than string seconds) by ‘inst string, osid string’ ?

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

Reissue any commands that failed and contact Oracle Support Services with the incident information.