Flashback Drop
Flashback Query
Flashback Versions Query
Flashback Transaction Query
Flashback Table
第1题:
( 35 ) “ 把查询 sc 表和更新 sc 表的 grade 列的权限授予用户 user1 ” 的正确 SQL 语句是
A ) GRANT SELECT , UPDATE ( grade ) ON TABLE sc TO user1
B ) GRANT SELECT sc , UPDATE sc . grade TO user1
C ) GRANT SELECT , UPDATE ON TABLE sc . grade TO user1
D ) GRANT SELECT ON TABLE sc , UPDATE ON TABLE sc(grade) TO user1
第2题:
A. Provides users access to network resources.
B. Performs router commands after user authentication.
C. Provides users with remote access only capabilities.
D. Does not require an authentication server
第3题:
A. shortly as
B. shortly after
C. shortly while
D. short after
第4题:
Kerberos is a form of user authentication that:()
第5题:
更改oracle用户HR,使其变为不可用(锁定)状态()
第6题:
A. Power User access
B. Power on password
C. Administrative password
D. User profile access
第7题:
第8题:
A.dismissed
B.discussed
C.disappeared
D.discovered
第9题:
Which of the following is enabled in the BIOS that will prompt a user to enter their password every time the laptop performs a POST?()
第10题:
Shortly after the Press Ctrl-Alt-Delete to login screen appears in Windows XP, a user gets the error One or more services failed to start. Which of the following locations could be accessed to identify the service that did not start and attempt to start the service manually?()