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試験番号：070-463
試験科目：「Implementing a Data Warehouse with Microsoft SQL Server 2012/2014」
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試験番号：070-698日本語
試験科目：「Installing and Configuring Windows 10 (070-698日本語版)」
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NEW QUESTION: 1
A SQL Server Integration Services (SSIS) package imports daily transactions from several files
into a SQL Server table named Transaction. Each file corresponds to a different store and is imported
in parallel with the other files. The data flow tasks use OLE DB destinations in fast load data access
mode.
The number of daily transactions per store can be very large and is growing. The Transaction table
does not have any indexes.
You need to minimize the package execution time.
What should you do?
A. Increase the value of the Row per Batch property.
B. Run the package in Performance mode.
C. Partition the table by day and store.
D. Create a clustered index on the Transaction table.
Answer: A
070-463 書籍
Explanation
* Data Access Mode - This setting provides the 'fast load' option which internally uses a BULK INSERT
statement for uploading data into the destination table instead of a simple INSERT statement (for
each single row) as in the case for other options.
* BULK INSERT parameters include:
ROWS_PER_BATCH =rows_per_batch
Indicates the approximate number of rows of data in the data file.
By default, all the data in the data file is sent to the server as a single transaction, and the number of
rows in the batch is unknown to the query optimizer. If you specify ROWS_PER_BATCH (with a value
> 0) the server uses this value to optimize the bulk-import operation. The value specified for
ROWS_PER_BATCH should approximately the same as the actual number of rows.
NEW QUESTION: 2
You are developing a data flow transformation to merge two data sources. One source
contains product data and the other source contains data about the country in which the product
was manufactured. Both data sources contain a two-character CountryCode column and both use
SQL Server. Both data sources contain an ORDER BY clause to sort the data by the CountryCode
column in ascending order.
You use a Merge Join transformation to join the data.
You need to ensure that the Merge Join transformation works correctly without additional
transformations.
What should you do? (Each answer presents a part of the solution. Choose all that apply.)
A. set the ValidateExternalMetaData property on the Merge Join transformation to True.
B. set the appropriate SortKeyPosition properties on the data sources.
C. set the IsSorted property on both data sources.
D. Set the MaxBuffersPerlnput property on the Merge Join transformation to 2.
Answer: B,C
070-463 過去問
Explanation
References:
http://msdn.microsoft.com/en-us/library/ms141775.aspx
http://msdn.microsoft.com/en-us/library/ms137653.aspx
http://siddhumehta.blogspot.com/2009/05/validateexternalmetadata-property.html
http://msdn.microsoft.com/en-us/library/ms135950.aspx
NEW QUESTION: 3
You are designing a SQL Server Integration Services (SSIS) package configuration strategy.
The package configuration must meet the following requirements:
*Include multiple properties in a configuration.
*Support several packages with different configuration settings.
You need to select the appropriate configuration. Which configuration type should you use?
To answer, select the appropriate option from the drop-down list in the dialog box.
Answer:
Explanation
NEW QUESTION: 4
You are developing a SQL Server Integration Services (SSIS) package.
The package must run a parameterized query against a Windows Azure SQL Database database.
You need to use the least amount of development effort to meet the package requirement.
Which task should you use? (To answer, select the appropriate task in the answer area.)
Answer:
Explanation
Running Parameterized SQL Commands
SQL statements and stored procedures frequently use input parameters, output parameters, and
return codes.
The Execute SQL task supports the Input, Output, and ReturnValue parameter types. You use the
Input type for input parameters, Output for output parameters, and ReturnValue for return codes.
Ref: http://msdn.microsoft.com/en-us/library/ms141003.aspx
In SSIS there are two tasks than can be used to execute SQL statements: Execute T-SQL Statement
and Execute SQL. What is the difference between the two?
The Execute T-SQL Statement task tasks less memory, parse time, and CPU time than the Execute SQL
task, but is not as flexible. If you need to run parameterized queries, save the query results to
variables, or use property expressions, you should use the Execute SQL task instead of the Execute T-
SQL Statement task.
Ref: http://www.sqlservercentral.com/blogs/jamesserra/2012/11/08/ssis-execute-sql-task-vs-
execute-t-sql-statement-task/