ORA-23500: cannot switch master for a multi-tier materialized view repgroup "[string]"."[string]"

Cause: An attempt was made to switch master for a materialized view repgroup when its parent repgroup is also a materialized view repgroup. This is not allowed.

Action: Drop and recreate the materialized view repgroup based on a proper parent repgroup.

Error Type: ORA

• Additional information for ORA-23500: cannot switch master for a multi-tier materialized view repgroup "[string]"."[string]"23500
Discussions and solutions for Oracle Database Error ORA-23500: cannot switch master for a multi-tier materialized view repgroup "[string]"."[string]" Developer anwers for Oracle Database Error ORA-23500: cannot switch master for a multi-tier materialized view repgroup "[string]"."[string]" FAQs for ORA-23500: cannot switch master for a multi-tier materialized view repgroup "[string]"."[string]" search others tips for ORA-23500: cannot switch master for a multi-tier materialized view repgroup "[string]"."[string]"