Apex Upgrade Fails with ORA-04021: Timeout Occurred While Waiting to Lock Object
(Doc ID 2198011.1)
Last updated on FEBRUARY 18, 2021
Applies to:Oracle Application Express (APEX) - Version 4.2.5.00 and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
1. Upgrading APEX from 4.2.X to 5.0.X.
2. Installation log shows:
APEX was upgraded.
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