多项选择题
To set the history retention period for either window logging or job logging individually, which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used?（）
A. LOG_HISTORY B. JOB_LOG_RETENTION C. WINDOW_LOG_RETENTION D. WHICH_LOG E. LOG_NAME
多项选择题 Whichtwostatementsaretrueregardingviews?（）
单项选择题 What is the default value for the ENABLED attribute of a job or program when it is created? （）
多项选择题 Whichthreestatementsaretrueregardingsubqueries?（）
