【C8】A．progressB．useC．moneyD．trouble

A. ISDN

B. Frame Relay

C. ATM

D. FDDI

A、Extraction of interesting patterns or knowledge

B、Explorations and analysis by automatic or semi-automatic means

C、Discover meaningful patterns from large quantities of data

D、Appropriate statistical analysis methods to analyze the data collected

A、Statistical analysis.

B、Observation.

C、Online search.

D、All of the three.

A、It shows chain of command, hierarchies in an organization

B、It illustrates a series of steps in a procedure, decision, or other “stepwise” process

C、It shows how percentages relate to each other within a whole

D、It compares data in two dimensions

A．str

B．float

C．dtype

D．bool

A. A two disk set with one data strip

B. A three disk set with two data strips and a parity strip

C. A two disk set with two data strips

D. A four disk set with two sets of data strips

A．XML

B．BLOB

C．DOUBLE

D．DBCLOB

ckup available for the target database was taken two days ago. Log files switches have occurred in last two days. The target database is duplicated on the same host, using the Recovery Manager (RMAN) duplicate command as follows:Which statement is true about the duplicate database in this scenario？（）

A. It contains data till the last backup

B. It contains all data from target database until the current time

C. It contains all data from only the committed transactions in the target database

D. It contains all data except that which is used by the transactions in the current online redo file of target database