ORA-10456: cannot open standby database; media recovery session may be in progress
Cause: A media recovery, RMAN, or flashback database session may have been in progress on a mounted instance of a standby database when an attempt was made to open the standby database.
Action: Check for and cancel any conflicting recovery session and open the standby database.
ORA-10456:不能打开备用数据库;媒体恢复会话可能正在进行中
1.一个会话必须结束媒体恢复操作,以确保不会有两个媒体恢复会话同时进行。
2.检查当前正在进行的媒体恢复会话,确保它已经完成。
3.使用显式SHUTDOWN ABORT关闭当前数据库实例,然后重新打开它。
4.验证是否有多个DATA ARCHIVE LOG PROCESSES正在工作,将它们减至1个。
5.重新尝试打开备份数据库的会话。