文档解释 ORA-30957: cannot downgrade because there are XML indexes Cause: An attempt was made to downgrade a database that has XML indexes. Action: ……

文档解释 ORA-26725: cannot downgrade apply handlers Cause: An attempt was made to downgrade apply handlers that are not associated with a local data……

文档解释 ORA-25427: cannot downgrade database links after database link data dictionary has been upgraded Cause: An attempt was made to downgrade af……

文档解释 ORA-15166: cluster in rolling downgrade from version [string] to [string] Cause: The current software version of the instance was incompati……

文档解释 ORA-25331: cannot downgrade because there are commit-time queue tables Cause: An attempt was made to downgrade a database that has commit-t……

文档解释 ORA-24058: cannot downgrade QUEUE_TABLE that has propagation in a prepared state Cause: An attempt was made to downgrade the queue table wh……

文档解释 ORA-15164: cluster rolling downgrade incomplete Cause: The cluster was still performing rolling downgrade. Action: Ensure that all the inst……

文档解释 ORA-26740: cannot downgrade because there are file groups Cause: An attempt was made to downgrade a database that has file groups. Action: ……

文档解释 ORA-25342: cannot downgrade because there are apply processes for user buffered messages Cause: An attempt was made to downgrade a database……

文档解释 ORA-24069: cannot downgrade queue table string while it is being upgraded Cause: An attempt was made to downgrade a queue table, but a prev……