You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（） recycle buffer cache。 large pool。 streams pool。 keep buffer cache。 redo log buffer。
幼儿园的建筑最佳应为（） 四层以上（含四层）的楼房。 三层楼房。 两层楼房。 平房。
Consider the following statement on a RANGE partitioned table: ALTER TABLE orders DROP PARTITION p1, p3; What is the outcome of executing the above statement?（） A syntax error will result as you cannot specify more than one partition in the same statement。 All data in p1 and p3 partitions are removed and the table definition is changed。 All data in p1 and p3 partitions are removed, but the table definition remains unchanged。 Only the first partition (p1) will be dropped as only one can be dropped at any time。
所谓偏心距就是旋转件的（）偏离（）的距离；而偏心速度是指旋转件在旋转时的（）速度。 答文:
真空度，大气压，绝对压力之间的关系（） p绝＝p真空度－p大气压。 p真空度＝p绝－p大气压。 p真空度＝p大气压－p绝。
Examine the structure of the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables.
Which two SQL statements produce the name, department name, and the city of all the employees who earn more then 10000?（）
