70-461 日本語対策 & 70-461 シュミレーション問題集

 

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70-461試験番号:70-461 最新試験
試験科目:「Querying Microsoft SQL Server 2012/2014」
最近更新時間:2017-06-07
問題と解答:165

>> 70-461 最新試験

 

NO.1 You develop a Microsoft SQL Server 2012 database. The database is used by two web
applications that access a table named Products.
You want to create an object that will prevent the applications from accessing the table directly while
still providing access to the required data.
You need to ensure that the following requirements are met:
* Future modifications to the table definition will not affect the applications' ability to access data.
* The new object can accommodate data retrieval and data modification.
You need to achieve this goal by using the minimum amount of changes to the existing applications.
What should you create for each application?
A. views
B. table partitions
C. stored procedures
D. table-valued functions
Answer: A

70-461 割引   

NO.2 DRAG DROP
You have a SQL Server database named CUSTOMERS.
You need to sign a stored procedure named SelectCustomers in the CUSTOMERS database.
Which four statements should you execute in sequence? To answer, move the appropriate
statements from the list of statements to the answer area and arrange them in the correct order.
Answer:
Explanation:
There are four steps involved in signing a module:
References:https://msdn.microsoft.com/en-us/library/bb669102(v=vs.110).aspx

NO.3 You are designing a table for a SQL Server database. The table uses horizontal partitioning.
You have the following requirements:
You need to choose the appropriate data type for the key value.
What should you do?
A. Generate a random value that uses the bigint datatype.
B. Use the NEWSEQUENTIALID function to create a unique identifier.
C. Use the NEWID function to create a unique identifier.
D. Generate a random value that uses the char(16) data type.
Answer: B

70-461 口コミ   70-461 正確率   
Explanation:
Horizontal partitioning divides a table into multiple tables. Each table then contains the same number
of columns, but fewer rows. For example, a table that contains 1 billion rows could be partitioned
horizontally into 12 tables, with each smaller table representing one month of data for a specific
year. Any queries requiring data for a specific month only reference the appropriate table.
NEWSEQUENTIALID creates a GUID that is greater than any GUID previously generated by this
function on a specified computer since Windows was started. After restarting
Windows, the GUID can start again from a lower range, but is still globally unique. When a
GUID column is used as a row identifier, using NEWSEQUENTIALID can be faster than using the
NEWID function. This is because the NEWID function causes random activity and uses fewer cached
data pages. Using NEWSEQUENTIALID also helps to completely fill the data and index pages.
References:https://msdn.microsoft.com/en-us/library/ms189786.aspx

NO.4 DRAG DROP
You use Microsoft SQL Server to develop a database application.
You create a stored procedure named usp_calculategrowth. The stored procedure modifies rows and
can result in several different exceptions.
You need to ensure that when the stored procedure is executed, the following requirements are met:
Which six Transact-SQL statements should you use? (To answer, move the appropriate
SQL statements from the list of statements to the answer area and arrange them in the correct
order.)
Answer:
Explanation:
Box 1: BEGIN TRY
A TRY...CATCH construct consists of two parts: a TRY block and a CATCH block. When an error
condition is detected in a Transact-SQL statement that is inside a TRY block, control is passed to a
CATCH block where the error can be processed.
A TRY blockstarts with the BEGIN TRY statement and ends with the END TRY statement.
Box 2: Exec usp_calculategrowth
Box 3: END TRY
Box 4: BEGIN CATCH
A TRY block must be followed immediately by a CATCH block. A CATCH block starts with the BEGIN
CATCH statement andends with the END CATCH statement.
Box 5: EXEC xp_logevent ...
xp_logevent logs a user-defined message in the SQL Server log file and in the Windows
Event Viewer. xp_logevent can be used to send an alert without sending a message to the client.
Incorrect:
Not RAISERROR: RAISERROR generates an error message and initiates error processing for the
session.
The message is returned as a server error message to the calling application or to an associated
CATCH block of a TRY...CATCH construct. New applicationsshould use
THROW instead.
Box 6: END CATCH
References:
https://msdn.microsoft.com/en-us/library/ms186244.aspx
https://technet.microsoft.com/en-us/library/ms179296(v=sql.105).aspx

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