APEX Login = ORA-6508 / Alert Log Shows ORA-600[qctbyt : bfc] / APEX Status is INVALID in DBA_REGISTRY
(Doc ID 2075216.1)
Last updated on FEBRUARY 28, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
This issue is related to an APEX (Oracle Application Express) upgrade. In this case, from 4.2 to 5.0.
An attempt to login into the APEX web page fails with the following error:
Trying to install APEX in a PDB (pluggable database).
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