简要叙述房地产评估市场法的理论依据。
You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager （RMAN）. The most recent backup of the TOOLStablespace to disk was taken on January 3. The TOOLStablespace is read-only.On February 21， when you execute a command to back up all the tablespaces to disk， you find that RMAN backs up the TOOLS tablespace also， even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLStablespace， you decide that the tablespace should not be backed up by RMAN. What can you do to skip backing up the TOOLStablespace without changing the current backup optimization setting？（） configure a default device for RMAN backups。 temporarily disable the retention policy for RMAN backups。 configure automatic channel allocation for RMAN backups。 use the CONFIGURE command to reconfigure the recovery window to 60 day。
You work as a database administrator for Certkiller .com. You are using three database， Certkiller DB01， Certkiller DB02， and Certkiller DB03， on different host machines in your development environment. The database serverconfiguration， such as IP address and listener port number， change frequently due to development requirements， and you havethe task of notifying the developers of the changes. Which connection method would you use to overcome this overhead？（） Host naming。 Local naming。 Easy Connect。 External naming。 directory naming。
在现埸对油纸绝缘的电力电缆进行耐压试验时，所选择的方法中最适宜的是（）。 交流耐压法。 冲击耐压法。 操作波耐压法。 直流耐压法。
In which scenarios would you rebuild an index？（） when you need to disable the index usage。 when you need to change storage options。 when you need to enable index monitoring。 when you need to move the index to another tablespace。
公称容积不大于1000L，用于盛装压缩气体的可重复充气而（）装置的移动式压力容器。
