Which of the following is TRUE for the DB2 isolation level Cursor Stability (CS)?（） ["An application process acquires at least a share lock on the current row of every cursor.","Any row that is read during a unit of work cannot be changed by other application processes until the unit of work is complete.","Any row changed by another application process can be read, even if the change has not been committed by that application process.","An application process that issues the same query more than once in a unit of work will not see additional rows caused by other application processes appending new information to the database."]
“四位一体”模式是由（）、（）、（）和（）温室组成。
Using the LIST command in Recovery Manager (RMAN), which two pieces of information from the RMAN repository can be listed?（） [" Stored scripts in the recovery catalog"," Backups that can be deleted from disk"," Backup sets and images copies that are obsolete"," Backups that do not have the AVAILABLE status in the RMAN repository"]
在管道动火施工时，首要任务是保证（） ["施工质量","施工进度","施工安全","节约成本"]
JBOD是指？（） ["冗余磁盘驱动器","一个虚拟SCSI磁盘子系统","可面对很多主机共享的SCSI磁盘","抽屉中的一组磁盘"]
饭店的目标应是（）。饭店的根本经营宗旨是（）。
