In which four clauses can a subquery be used? （）A、in the INTO clause of an INSERT statementB、in the FROM clause of a SELECT statementC、in the GROUP BY clause of a SELECT statementD、in the WHERE clause of a SELECT statementE、in the SET clause of an UPDATE

题目

In which four clauses can a subquery be used? （）

A、in the INTO clause of an INSERT statement
B、in the FROM clause of a SELECT statement
C、in the GROUP BY clause of a SELECT statement
D、in the WHERE clause of a SELECT statement
E、in the SET clause of an UPDATE statement
F、in the VALUES clause of an INSERT statement

参考答案和解析

正确答案:B,D,E,F

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相似问题和答案

第1题：

There are four questions,which is not from the discourse teaching?

A.What does the author imply?
B.Should we say“a apple”or“an apple”?
C.What can be inferred from the text?
D.What's the writer's main opinion?

答案：B

解析：

考查语篇教学

B选项，是关于冠词的正确用法，符合题意选择不正确选项，故此题的正确选项为B。

C和D选项都是和语篇相关的，故排除。

故此题的正确选项为B。

第2题：

In which four clauses can a subquery be used?（）

A、in the INTO clause of an INSERT statement
B、in the FROM clause of a SELECT statement
C、in the GROUP BY clause of a SELECT statement
D、in the WHERE clause of a SELECT statement
E、in the SET clause of an UPDATE statement
F、in the VALUES clause of an INSERT statement

正确答案:A,B,D,E

第3题：

(b) The management of Division C has identified the need to achieve cost savings in order to become more

competitive. They have decided that an analysis and investigation of quality costs into four sub-categories will

provide a focus for performance measurement and improvement.

Required:

Identify the FOUR sub-categories into which quality costs can be analysed and provide examples (which

must relate to Division C) of each of the four sub-categories of quality cost that can be investigated in order

that overall cost savings might be achieved and hence the performance improved. (8 marks)

正确答案：
(b) Quality costs may be monitored by measuring costs of non-conformance and costs of conformance.
Costs of non-conformance occur when the product fails to reach the design quality standards. Such costs may be subdivided
into internal failure costs and external failure costs.
Internal failure costs occur when the failure is detected before the transfer of the product to the customer.
External failure costs occur when the failure to reach the required standards is not detected until after the product has been
transferred to the customer.
Costs of conformance are those incurred in reducing or eliminating the costs of non-conformance. Such costs may be
subdivided into appraisal costs and prevention costs.
Appraisal costs are those associated with the evaluation of items such as purchased material and services in order to ensure
that they conform. to the agreed specification.
Prevention costs are those associated with the implementation of a quality improvement programme. Such costs are planned
in advance and their implementation should lead to continuous improvement.
Examples of quality costs relevant to Division C may include:
Internal failure costs: cost of materials scrapped due to poor receipt and storage procedures or losses of CC output due to poor
processing routines.
External failure costs: cost of quality problems with batch of CC not detected until it has reached Division B. This may require
free replacement of the batch and compensation for loss of output by Division B.
Appraisal costs: evaluation of purchased material and services in relation to the manufacture of CC to ensure that it conforms
to the agreed specification; e.g. inspection and testing before use.
Prevention costs: the cost of implementation of staff training and the costs of equipment testing to ensure that it conforms to
the specification standards required for the production of CC.
(Alternative relevant examples would be accepted)

第4题：

A recently ordered server came standard with one 3.0GHz processor. It is capable of handling fourtotal processors. Which of the following processor combinations can be used in this server？（）

A、 One， two， three or four processors
B、 One， two， or three processors
C、 One， three， or four processors
D、 One， two or four processors

正确答案:D

第5题：

Which four are attributes of single row functions? （）

A、cannot be nested
B、manipulate data items
C、act on each row returned
D、return one result per row
E、accept only one argument and return only one value
F、accept arguments which can be a column or an expression

正确答案:B,C,D,E

第6题：

A c（） sentence contains two or more clauses， one of which is incorporated in the other.
complex
略

第7题：

Cisco Express Forwarding has been enabled on router TK1. With CEF， prefixes that require exception processing can be cached with one of which four special adjacencies？（）

A、Kick
B、Drop
C、Forward
D、Null
E、Discard
F、Glean
G、Express

正确答案:B,D,E,F

第8题：

In which four clauses can a subquery be used? ()

A. in the INTO clause of an INSERT statement

B. in the FROM clause of a SELECT statement

C. in the GROUP BY clause of a SELECT statement

D. in the WHERE clause of a SELECT statement

E. in the SET clause of an UPDATE statement

F. in the VALUES clause of an INSERT statement

参考答案：B, D, E, F

第9题：

Which three statements are true regarding subqueries?（）

A、Subqueries can contain GROUP BY and ORDER BY clauses
B、Main query and subquery can get data from different tables
C、Main query and subquery must get data from the same tables
D、Subqueries can contain ORDER BY but not the GROUP BY clause
E、Only one column or expression can be compared between the main query and subquery
F、 Multiple columns or expressions can be compared between the main query and subquery

正确答案:A,B,E

第10题：

Which four types of objects can be thrown using the throw statement？（）

A、 Error
B、 Event
C、 Object
D、 Exception
E、 Throwable
F、 RuntimeException

正确答案:A,D,E,F

In which four clauses can a subq

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