A.SELECT name FROM V$CONTROLFILE
B.SELECT name FROM V$CTRLLFILE
C.SELECT name FROM V$USERFILES
D.SELECT name FROM V$DBAFILE

A.SELECT name，status FROM V$datafile
B.SELECT name，status FROM V$userfile
C.SELECT name，status FROM V$DBA
D.SELECT name，status FROM V$ctrlfile

A.系统表空间
B.字典表空间
C.用户表空间
D.临时表空间

A.表空间
B.盘区
C.数据文件
D.段

A.块
B.盘区
C.段
D.表空间

A.listner.ora
B.tnsnames.ora
C.net.ora
D.init.ora

A.set listner listner1
B.set current_listner listner1
C.alter current_listner listner1
D.alter system current_listner listner1

A.server
B.service
C.svr
D.help

A.state
B.start
C.status
D.current

A.LISTNER
B.LSNR
C.LSNRCTL
D.LSTN

A.ALTER DATABASE ROLE test_role
B.CREATE ROLE test_role
C.UPDATE ROLE test_role
D.ALTER ROLE test_role