ORA-59021
Dropping child file '%0!s' in disk group '%1!s' is not allowed.
Cause
The operation failed because child file deletion was attempted.
Action
Child files can be deleted only as part of a DROP MIRROR COPY operation.
ORA-59021
drop of child file '%0!s' in disk group '%1!s' is not allowed
Cause
The operation failed because child file deletion was attempted.
Action
Child files can be deleted collectively only as part of drop mirror copy operation.
ORA-59021
drop of child file '%0!s' in disk group '%1!s' is not allowed
Cause
The operation failed because child file deletion was attempted.
Action
Child files can be deleted collectively only as part of drop mirror copy operation.