多项选择题

Online index rebuild functionality has been extended to include which four index structures？（）

A.Bitmap indexes.
B.Reverse key indexes.
C.Function-based indexes.
D.Key-compressed indexes on regular tables.
E.Key-compressed indexes on IOT （including secondary indexes）

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热门试题

多项选择题

WhenperformingincompleterecoveryusingUNTILSEQUENCEwithRMAN，whichtwopiecesofinformationarerequired？（）

A.Thread number.
B.Log Sequence number.
C.Control file sequence number.
D.Name of the last archived log.

单项选择题

Whichbackgroundprocessreadstheredologbufferandwritesittoafile？（）

A.ARCn
B.DBWn
C.CKPT
D.LGWR
E.PMON
F.SMON