Ensure SQL Plus is installed on your system and properly configured to connect to your Oracle database. Configure your Oracle database connection. For more details on configuring SQL Plus, see ...

昨晚系统（Linux +oracle9i）做冷备份时没有成功，然后自动启动数据库错误(su - oracle -c dbstart; Database "" already started. Database "" possibly left running when system went down (system crash?). Notify Database Administrator.

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