A customer has a need for an xSeries server for an application requiring 12GB memory with the capacity of up to 20GB. The HDD configuration needs to be as follows： （1）Two drives RAID-1 for the operating system （2）Five drives for Data in a RAID-5 configuration with one Hot-Spare （3）All drives have to be internal. Which of the following will satisfy the requirements for the application？（） x366。 x255。 x346。 x455。
平听腐败是由什么两大原因组成的。
You need to calculate the total of all salaries in the accounting department. Which group function should you use? （） MAX。 MIN。 SUM。 COUNT。 TOTAL。 LARGEST。
Which statement is true regarding virtual private catalogs?（） A virtual private catalog owner can create a local stored script, and have read/write access to a global stored script.。 The virtual private catalog owner cannot create and modify the stored scripts.。 The set of views and synonyms that make up the virtual private catalog is stored in the schema of the RMAN recovery catalog owner.。 To perform most of the RMAN operations, the virtual catalog owner must have the SYSDBA or SYSOPER privilege on the target database。
下列不属于根据仓库的管理体制和使用对象的不同进行分类的仓库是（） 自营仓库。 立体仓库。 公共仓库。 保税仓库。
What is the purpose of the RMAN recovery catalog？（）
