You have executed this command to change the size of the database buffer cache： SQL> ALTER SYSTEM SET DB_CACHE_SIZE=2516582； System altered. To verify the change in size， you executed this command：SQL> SHOW PARAMETER DB_CACHE_SIZENAME TYPE VALUE ------------------- ----------- ------------------ db_cache_size big integer 4194304 Why is the value set to 4194304 and not to 2516582（） Because 4194304 is the granule size。 Because 4194304 is the standard block size。 Because 4194304 is the largest nonstandard block size defined in the database。 Because 4194304 is the total size of data already available in the database buffer cache。
下面是一次心理咨询中咨询者与来访者的对话节录。
来访者：别人都看着我。
咨询者：是否别人都不干自己的事情了，都围着你看？
来访者：没有。
咨询者：要不要在身上贴张纸，写上“不要看我”？
来访者：那人家都要来看我了！
咨询者：那原来你说的别人都在看你是否是真的呢？
来访者：„„是我头脑中想象的„„„„
咨询者对来访者的问题采取的是何种取向的心理咨询方法？（） 精神分析治疗。 来访者中心咨询。 合理情绪治疗（RET）。 森田疗法。
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。
What is the purpose of the RMAN recovery catalog？（） It must be used because all RMAN-related backup and recovery metadata information is contained in it.。 It provides a convenient， optional， repository of backup- and recovery-related metadata.。 It provides the ability to store RMAN scripts for global use by any database that has access to the repository.。 It provides a means of storing all RMAN backup sets physically in an Oracle database server. 。 It provides the ability to store backup records for more than a year.。
篮球肩上单手传球的动作要领是：（）。
You need to calculate the total of all salaries in the accounting department. Which group function should you use? （）
