UPDATE 、
INSERT 和
DELETE 操作时,为了保证被操作的元组满足视
图定义中子查询语句的谓词条件,应在视图定义语句中使用可选择项( )。A.WITH
REVOKE OPTION
A: WITH
CHECK OPTION
B: WITH
ROLE OPTION
C: WITH
GRANT OPTION
举一反三
- 当对视图进行 UPDATE 、 INSERT 和 DELETE 操作时，为了保证被操作的元组满足视图定义中子查询语句的谓词条件，应在视图定义语句中使用可选择项()。 A: With Revoke Option B: With Check Option C: With Role Option D: With Grant Option
- 当对视图进行UPDATE、INSERT、DELETE操作时，为了保证被操作的行满足视图定义中子查询语句的谓词条件，应在视图定义语句中使用可选择项( )。 A: with view option B: with select option C: with check option D: with read option
- 当对视图进行 UPDATE 、 INSERT 和 DELETE 操作时，为了保证被操作的元组满足视图定义中子查询语句的谓词条件，应在视图定义语句中使用可选择项_________
- *在SQL SERVER 2008中,如果要求对视图更新时必须满足视图定义的查询语句,应当在创建视图语句中使用( )。 A: WITH UPDATE OPTION B: WITH INSERT OPTION C: WITH DELETE OPTION D: WITH CHECK OPTION
- 让视图中所有字段不可更新,可以通过什么子句控制?() A: WITH<br/>CHECK OPTION B: WITH<br/>READ ONLY C: CHECK<br/>OPTION D: READ<br/>ONLY
内容
- 0
在dhcp服务器的配置文件中,使用(<br/>)配置项为客户机指定默认网关地址。 A: Option<br/>routers B: Option<br/>domain-name-servers C: Option<br/>gateway D: Option<br/>domain-name
- 1
若用户A是关系R上的某权限p的拥有者,其他各用户做如下操作:[br][/br]用户 A: GRANT p ON R TO B: WITH GRANT OPTION<br>用户B:GRANT p ON R TO D, E WITH GRANT OPTION<br>用户D:GRANT P ON R TO C: , E<br>用户B:REVOKE p ON R FROM D<br>用户A : REVOKE p ON R FROM B CASCADE<br>最终有( )个用户拥有权限p。<br>A.2<br>B.3<br>C.1 D: 0
- 2
The<br/>shipment time is June or July at our <br/>and the<br/>goods will be shipped in one <br/>.() A: choice, shipment B: option, lot C: decision, cargo D: option, consignment
- 3
Which of the following is NOT true ( ) A: When a CBOE call<br/>option on IBM is exercised, IBM issues more stock B: An American<br/>option can be exercised at any time during its life C: An call option<br/>will always be exercised at maturity if the underlying asset price is<br/>greater than the strike price D: A put option will<br/>always be exercised at maturity if the strike price is greater than<br/>the underlying asset price.
- 4
当使用绘图工具时,如何暂时切换到吸管工具?(<br/>) A: 按住Option<br/>(Mac) / Alt (Win)键 B: 按住Command<br/>(Mac) / Ctrl (Win) 键 C: 按住Command<br/>+ Option (Mac) / Ctrl + Alt (Win) 键 D: 按住Shift键