Which four are true about RMAN backup sets? (Choose four.)
A.A backup piece can belong to only one backup set. B.A data file can be split into multiple sections stored in different backup sets. C.A data file can be split into multiple sections stored in different backup pieces正确答案ACDH
In the same backup set. D.Blocks from multiple data files can be contained in one backup piece, E.A backup set can contain only one backup piece. F.A backup set must be written to media. G.A backup set must be written to disk. H.Blocks from multiple data files can be contained in one backup set,
