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【单选题】
Translate the following into Chinese. bore and strokeA.
缸径和行程
B.
孔径和行程
C.
孔径和储存
D.
行程和洞径
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举一反三
【单选题】where子句、group by子句、having子句在select语句中的顺序是()
A.
having子句、group by子句、where子句
B.
group by子句、having子句、where子句
C.
group by子句、where子句、having子句
D.
where子句、group by子句、having子句
【多选题】关于where子句和having子句的说法中错误的是哪几个？
A.
where 子句的作用对象是基本表或视图
B.
where 子句和 having 子句不能同时出现
C.
having 子句的作用对象是基本表或者视图
D.
where 子句的作用对象是分组结果
【单选题】At a formal banquet, the host prepares adequate seating for the guests. _______ and the elderly sit on the north side of the table or directly facing the entrance to the room.
A.
the host
B.
people of high status
C.
relatives
D.
confidants
【简答题】At a formal banquet, the host prepares adequate seats for the guests. and usually sit at the northern side of the table
or directly facing the entrance to the room.
【多选题】Which of the following are the staples served at a formal banquet.
A.
rice
B.
noodles
C.
dumplings
D.
soup
【单选题】下列关于SQL中HAVING子句的描述，错误的是______。
A.
HAVING子句必须与GROUP BY子句同时使用
B.
HAVING子句与GROUP BY子句无关
C.
使用WHERE子句的同时可以使用HAVING子句
D.
使用HAVING子句的作用是限定分组的条件
【简答题】WHERE子句和【 】子句都是用于筛选记录的，但作用对象不同。
【判断题】At a formal banquet, the elderly or people of high status usually have their seats at the southern side of the table or directly facing the entrance to the room.
A.
正确
B.
错误
【判断题】At a formal banquet, the host prepares adequate seats for the guests. For a large number of guests, the elderly or people of high status are usually allocated specific seats, which are at the southern...
A.
正确
B.
错误
【单选题】以下关于where子句和having子句说法错误的是
A.
where子句完成的是在原始数据中进行筛选
B.
having子句完成对分组后的数据进行筛选
C.
两个子句的功能相同
D.
where子句在from子句之后，having子句用在group by子句之后
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