Which two operations can be performed on an external table()
ACreate a view on the table.
BCreate an index on the table.
CCreate a synonym on the table.
DAdd a virtual column to the table.
EUpdate the table using the UPDATE statement.
FDelete rows in the table using the DELETE command.
下列主要应用于智能型手机、平板计算机、GPS车用导航计算机的操作系统是()。
AAndroid
BWindows 7
CWindows XP
DWindows Mobile
在Excel2010中,迷你图表的类型包含()。
A、柱形图
B、折线图
C、散点图
D、饼图
E、盈亏图
简述S330设备背板总线槽位业务容量。
下列的URL中,具有身份验证与加密通讯的网站地址是()。
A、http://wenku.baidu.com
B、http://weibo.com
C、http://www.sina.com.cn
D、https://www.linkedin.com
E、http://www.youku.com
You have two tables with referential integrity enforced between them. You need to insert data to thechild table first because it is going to be a long transaction and data for the parent table will be available ina later stage, which can be inserted as part of the same transaction. View the Exhibit to examine the commands used to create tables. Which action would you take to delay the referential integrity checking until the end of the transaction()
A、 Set the constraint to deferred before starting the transaction.
B、 Alter the constraint to NOVALIDATE state before starting the transaction.
C、 Enable the resumable mode for the session before starting the transaction.
D、 Set the COMMIT_WAIT parameter to FORCE_WAIT for the session before starting the transaction.