单项选择题
You are tuning RMAN to optimize performance.You want tape I/O to be asynchronous when you perform tape backups. Which action should you take?（）
A. Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE B.Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE C. Use compression when performing tape backups D. Configure multiple SBT channels
单项选择题 Which statement about the enabling of table compression in Oracle Database 11g is true?（）
多项选择题 In which two aspects does hot patching differ from conventional patching?（）
单项选择题 Which statement describes the effect of the execution of the above PL/SQL block?（）
