You work as a database administrator for Certkiller .com. In your organization， you have four databases， Certkiller DB01， Certkiller DB02， Certkiller DB03， and Certkiller DB04， which are located in Berlin， Frankfurt，Rammstein， and Munich respectively， and which were created using Database Configuration Assistant （DBCA）. You want to perform administrative tasks on these databases that include startup and shutdown， taking regular backups， and so on， fromFrankfurtusing Oracle tools. Which Oracle file would you enable to perform this task？（） Control file。 Password file。 Parameter file。 Online redo log file。 Listener controller file。 Server parameter file。
接触面积定义
中控发生火灾后，海伦系统将自动释放中控门窗（）空调 可以不关。 必须关。
Which technique retrieves the error number when explicit DML fails?（） SQLCODE in an On-Error trigger. 。 SQLCODE in an exception handler. 。 DBMS_ERROR_CODE in an On-Error trigger. 。 DBMS_ERROR_CODE in an exception handler.&e。
玻璃板隔墙应使用（）。 压花玻璃。 镀膜玻璃。 钢化玻璃。 中空玻璃。
Which statement is true regarding online redefinition for the migration of BasicFile LOBs to SecureFile LOBs？（）
