A. The BACKUP command can not be used to make image copies of a datafile.
B. The BACKUP command can improve performance by multiplexing backup files.
C. The BACKUP can take advantage of the block-change tracking capability.
D. The BACKUP command cannot store data in incremental backups.
E. The BACKUP command can store data in cumulative incremental backups only.来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/17013648/viewspace-1322051/ ,如需转载,请注明出处,否则将追究法律责任。