多项选择题
A. SGA B. Database processes C. Database datafiles D. Control files E. Database parameter file or spfile
A. Ease of disk administration and maintenance B. Load balancing across physical disks C. Software RAID-1 data redundancy with double or triple mirrors D. Automatic recovery of failed disks
A. Date format B. Decimal character C. Group separator D. First day of the month E. None of the above F. All of the above