The RVPC user can do which of the following？（） Register databases if granted the register database privilege。 See all databases in the recovery-catalog schema。 See all database-related metadata in the recovery catalog if they are granted access to that database。 Unregister databases from the RVPC catalog that were not granted to the RVPC catalog owner with the grant command。 Not be connected to with the RMAN command-line catalog parameter for backup or recovery purpose。
心理眩光
You work as a database administrator for Supportcenter.cn. When you tried to connect to the database， you received the following error： ERROR： ORA-12541：TNS：no_listener You found that the listener is not running on the server， so you issued the following command in the Listener Control utility to start the listener. lsnrctl>START What statement is true？（） It would attempt to start the default listener。 It would start the most recently created listener.。 It would display an error with a message asking for the listener name to be specified.。 It would show you a list of listeners and prompts for the listener name that you want to start.。
《工程建设强制性条文》（电力工程部分）规定，地下开挖工程施工，进行爆破时，人员应撤至飞石、有害气体和冲击波影响范围之外，且无落石威胁的安全地点。单向开挖隧洞，安全地点至爆破工作面的距离，应不少于（）m。 50。 100。 200。 500。
Which operating system can directly host managed storage for IBM i, AIX, Linux, VMware and Windows on a Power Systems server?（） AIX。 IBMi。 Linux。 VIO Server。
引发二战后资本主义世界最严重的一次经济危机的直接导火线是（）。
