单项选择题
A.Only the data files.
B.Only the data files and the online logs.
C.The data files， control files， and the online logs.
D.The data files and control files， but not the online logs.
单项选择题 You want to create a copy of the DEPARTMENTS table. When that is complete， you want to truncate the new DEPARTMENTS table， then restore the data with a direct-load insert from the old DEPARTMENTS table. Which CREATE statement should you use？（）
单项选择题 WhicharerequiredinitializationparametersinanOracleSharedServerenvironment？（）
多项选择题 Whichthreetypesofinformationdoesthecontrolfilecontain？（）