What is the correct order of steps to perform an online database backup？（） a. alter database begin backup b. alter database end backup c. Back up the database datafiles d. Back up the archive log files e. alter system switch logfile a， b， c， d， e。 e， d， a， b， c。 a， c， b， d， e。 d， b， c， a， e。 a， c， b， e， d。
中世纪东西方城市发展有哪些不同点？
An operator wants to move all files inside the directory /home/operator to the current directory. Which of the following commands will complete the task?（） mv /home/operator .。 mv /home/operator/* .。 mv /home/operator ../..。 mv /home/operator/all ../home/operator。
In your production database there is a job， CALC_STAT， which has been scheduled to run every Friday at 5：00 p.m. CALC_STAT updates the optimizer statistics for the objects owned by the APPS schema. You want the task to be generic， thereby allowing users to modify the attributes of the task at run time without affecting the original task. Which component of Oracle Scheduler must you define to achieve this？（） Window。 Program。 Job class。 Window grou。
直援模式
When selling against competition， which focus on the iDataPlex value proposition of the following？（）
