标题: ORA-00750: database has been previously mounted and dismounted [打印本页] 作者: admin 时间: 2016-7-10 14:14 标题: ORA-00750: database has been previously mounted and dismounted ORA-00750: database has been previously mounted and dismounted Cause: The instance has already mounted and dismounted the database, which is
only allowed once in its lifetime. Action: Shut down the database.