多项选择题

Which two data types can be converted to LOBs using an ALTER TABLE… MODIFY command？（）

A.RAW
B.LONG
C.VARCHAR
D.LONG RAW

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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）

多项选择题

When performing incomplete recovery using UNTIL SEQUENCE with RMAN， which two pieces of information are required？（）

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

单项选择题

Which background process reads the redo log buffer and writes it to a file？（）

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