【单选题】连接到scott用户下,如果需要给用户user_wb授予查询该用户下emp表的权限,下列写法正确的是()
A.
grant select to user_wb
B.
grant select on emp to user_wb
D.
grant select on emp to scott
【单选题】以 SYS 用户连接数据库时,要删除 SCOTT 用户下的 dept 表中的所有数据,应使用的语句是()
【单选题】FLIGHT TIMETABLE FROM SHANGHAI TO NEW YORK Tue Dep. 08.07 Wed Dep. 09.08 Thurs Dep. 20.30 FROM NEW YORK TO SHAGNHAI Sat Dep. 14:35 Sun Dep. 23:40 You cannot fly to Shanghai from New York _____
D.
FLIGHT TIMETABLE FROM SHANGHAI TO NEW YORK Tue Dep. 08.07 Wed Dep. 09.08 Thurs Dep. 20.30 FROM NEW YORK TO SHAGNHAI Sat Dep. 14:35 Sun Dep. 23:40 You cannot fly to Shanghai from New York _____
【单选题】What do people usually eat at Easter? [ ]
【单选题】从房地产估价角度来说,下列对“建筑物“描述正确的是( )
【单选题】在Oracle中,用ALTER将scott的口令改为hello,下列哪个是正确的?( )
A.
ALTER USER scott IDENTIFIED BY hello
B.
ALTER scott USER IDENTIFIED BY hello
C.
ALTER USER scott IDENTIFIED AS hello
D.
ALTER USER hello IDENTIFIED BY scott
【单选题】从房地产估价角度来说,下列对 “ 建筑物 ” 的描述正确的是 ()
【单选题】下列条件中( )不是选择半即热式加热器时需要注意的条件。
B.
有灵敏、可靠的温度压力控制装置,保证安全供水
C.
有足够的热水储存容积,保证用水高峰时系统能够正常使用
D.
被加热水侧的阻力损失不影响系统冷热水压力的平衡和稳定
【多选题】User SCOTT wants to perform a bulk insert operation in the EMP_DEP table. SCOTT receives thefollowing error after the INSERT statement is issued and few rows are inserted: INSERT INTO EMP_DEP (emp_id,...
A.
Grant the RESOURCE role to SCOTT.
B.
Add data files to the USERS tablespace.
C.
Grant the CREATE ANY TABLE privilege to SCOTT.
D.
Increase the space for SCOTT on the USERS tablespace.
E.
Increase the size of the data file associated with the USERS tablespace
【判断题】甲盐场2015年共占地5 000平方米,其中盐滩用地3 500平方米,办公用地800平方米,其余为职工宿舍用地。已知甲盐场所在地城镇土地使用税年单位税额为每平方米2元,则甲盐场2015年应缴纳的城镇土地使用税=(5 000-3 500-800)错2=1 400(元)。