标题: ORA-25427: cannot downgrade database links [打印本页] 作者: admin 时间: 2016-9-2 08:40 标题: ORA-25427: cannot downgrade database links ORA-25427: cannot downgrade database links after databORA-25442 has been upgraded Cause: An attempt was madeto downgrade after the upgrade of the database link
data dictionary. Action: Drop the databaselinks before attempting the downgrade.