070-464 無料問題集「Microsoft Developing Microsoft SQL Server Databases」
Your company has a main office in London and a branch office in New York.
Your network contains a server named Server5 that has SQL Server 2012 installed. Server5 contains a database name ContentDB and a table named ContentTable.
You add an additional server named Server9 that runs SQL Server 2012.
You need to create a distributed partitioned view. The solution must minimize the amount of network traffic.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
Your network contains a server named Server5 that has SQL Server 2012 installed. Server5 contains a database name ContentDB and a table named ContentTable.
You add an additional server named Server9 that runs SQL Server 2012.
You need to create a distributed partitioned view. The solution must minimize the amount of network traffic.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
正解：B、C、D、F
解答を投票する
You create a table named Customers by using the following code segment:
You create a non-clustered index named IX_Name on the name column.
You write the following query to retrieve all of the customers that have a name that starts with the letters SMI:
You discover that the query performs a table scan.
You need to ensure that the query uses the index.
What should you do?
You create a non-clustered index named IX_Name on the name column.
You write the following query to retrieve all of the customers that have a name that starts with the letters SMI:
You discover that the query performs a table scan.
You need to ensure that the query uses the index.
What should you do?
正解：D
解答を投票する
You use SQL Server 2014. The physical server is a dedicated database server that has 120GB of RAM available. There is approximately 50GB of storage space available on a slow local disk.
You create a new stored procedure. You decide you need to temporarily hold approximately 300,000 rows from two tables, from which you will compute two complex business scores.
The stored procedure will use temporary storage defined as follows:
The code will make several passes through the data, applying complex calculations before writing the data to a permanent disk-based table in the same database from which it reads the data.
For this stored procedure, you need to deal with temporary data in the most efficient way to minimize physical disk pressure.
What should you do? More than one answer choice may achieve the goal. Select the BEST answer.
You create a new stored procedure. You decide you need to temporarily hold approximately 300,000 rows from two tables, from which you will compute two complex business scores.
The stored procedure will use temporary storage defined as follows:
The code will make several passes through the data, applying complex calculations before writing the data to a permanent disk-based table in the same database from which it reads the data.
For this stored procedure, you need to deal with temporary data in the most efficient way to minimize physical disk pressure.
What should you do? More than one answer choice may achieve the goal. Select the BEST answer.
正解：D
解答を投票する
解説: (JPNTest メンバーにのみ表示されます)
You have a SQL Server 2012 database named database1.
Users report that queries that usually take less than one second to execute, take more than 30 seconds to execute.
You need to view the server resource consumption when the queries are executed.
What should you do?
To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Users report that queries that usually take less than one second to execute, take more than 30 seconds to execute.
You need to view the server resource consumption when the queries are executed.
What should you do?
To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
正解：
Explanation:
Note:
* (step1, step 2) Both the Profiler trace and the Performance Monitor logs should be started and stopped at about the same time.
* (step 3, step 4) Once you have completed capturing the data for both tools, you are ready to perform the correlation analysis.
* (step 5) How to Correlate SQL Server Profiler Data with Performance Monitor Data Correlating Performance Monitor and Profiler data is a straightforward process that simply involves importing both sets of data into Profiler. Start Profiler and load the trace file you want to correlate.
From the main menu of Profiler, select File | Import Performance Data,
* With SQL Server Profiler, we have the tools to identify the causes of such spikes. We can import Performance Monitor log data and compare it directly with Profiler activity. If we see a spike in CPU utilization, we can identify which statement or statements were running at the same time, and diagnose potential problems.
You have a database named database1.
Database developers report that there are many deadlocks.
You need to implement a solution to monitor the deadlocks. The solution must meet the following requirements:
* Support real-time monitoring.
* Be enabled and disabled easily.
* Support querying of the monitored data.
What should you implement?
More than one answer choice may achieve the goal. Select the BEST answer.
Database developers report that there are many deadlocks.
You need to implement a solution to monitor the deadlocks. The solution must meet the following requirements:
* Support real-time monitoring.
* Be enabled and disabled easily.
* Support querying of the monitored data.
What should you implement?
More than one answer choice may achieve the goal. Select the BEST answer.
正解：B
解答を投票する
解説: (JPNTest メンバーにのみ表示されます)
You have a Microsoft SQL Azure database.
You have the following stored procedure:
You discover that the stored procedure periodically fails to update HR.Employees.
You need to ensure that HR.Employees is always updated when up_employees executes.
The solution must minimize the amount of time required for the stored procedure to execute and the number of locks held.
What should you do?
You have the following stored procedure:
You discover that the stored procedure periodically fails to update HR.Employees.
You need to ensure that HR.Employees is always updated when up_employees executes.
The solution must minimize the amount of time required for the stored procedure to execute and the number of locks held.
What should you do?
正解：A
解答を投票する
You have a table named Table1. Table1 has 1 million rows.
Table1 has a columnstore index for a column named Column1.
You need to import data to Table1. The solution must minimize the amount of time it takes to import the data.
What should you do?
To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Table1 has a columnstore index for a column named Column1.
You need to import data to Table1. The solution must minimize the amount of time it takes to import the data.
What should you do?
To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
正解：
1 - Create a table named Table2 by using the same schema as Table1.
2 - Partition Table1.
3 - Import the data to Table2.
4 - Create a columnstore index on Table2 for Column1.
5 - Switch Table2 toTable1.
Explanation:
Note:
* An xVelocity memory optimized columnstore index, groups and stores data for each column and then joins all the columns to complete the whole index.
Columnstore indexes can transform the data warehousing experience for users by enabling faster performance for common data warehousing queries such as filtering, aggregating, grouping, and star-join queries.
* Tables that have a columnstore index cannot be updated.
There are three ways to work around this problem.
A) To update a table with a columnstore index, drop the columnstore index, perform any required INSERT, DELETE, UPDATE, or MERGE operations, and then rebuild the columnstore index.
B) (applies in this scenario) Partition the table and switch partitions. For a bulk insert, insert data into a staging table, build a columnstore index on the staging table, and then switch the staging table into an empty partition. For other updates, switch a partition out of the main table into a staging table, disable or drop the columnstore index on the staging table, perform the update operations, rebuild or re-create the columnstore index on the staging table, and then switch the staging table back into the main table.
C) Place static data into a main table with a columnstore index, and put new data and recent data likely to change, into a separate table with the same schema that does not have a columnstore index.