70-461 Exam
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Testking offers free demo for exam 70 461 exam. "Querying Microsoft SQL Server 2012", also known as 70 461 certification exam, is a Microsoft Certification. This set of posts, Passing the Microsoft 70 461 practice test exam, will help you answer those questions. The exam 70 461 practice test Questions & Answers covers all the knowledge points of the real exam. 100% real Microsoft 70 461 vce exams and revised by experts!
Q1. CORRECT TEXT
You need to create a view named uv_CustomerFullNames. The view must prevent the underlying structure of the customer table from being changed.
Part of the correct T-SQL statement has been provided in the answer area. Provide the complete code.
Answer:
Q2. You are developing a database that will contain price information.
You need to store the prices that include a fixed precision and a scale of six digits.
Which data type should you use?
A. Float
B. Money
C. Smallmoney
D. Decimal
Answer: D
Explanation:
Decimal is the only one in the list that can give a fixed precision and scale. Reference: http://msdn.microsoft.com/en-us/library/ms187746.aspx
Q3. CORRECT TEXT
You have a database named Sales that contains the tables shown in the exhibit. (Click the Exhibit button.)
You have an application named Appl. You have a parameter named @Count that uses the
int data type. App1 is configured to pass @Count to a stored procedure.
You need to create a stored procedure named usp_Customers for App1 that returns only
the number of rows specified by the @Count parameter.
The solution must NOT use BEGIN and END statements.
Part of the correct T-SQL statement has been provided in the answer area. Provide the
complete code.
Answer:
Q4. You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects.
You need to retrieve the students who scored the highest marks for each subject along with the marks.
Which Transact-SQL query should you use?
A. SELECT StudentCode as Code, RANK() OVER(ORDER BY AVG(Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode
B. SELECT Id, Name, Marks, DENSE_RANK() OVER(ORDER BY Marks DESC) AS Rank FROM StudentMarks
C. SELECT StudentCode as Code, DENSE_RANK() OVER(ORDER BY AVG(Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode
D. SELECT StudentCode as Code, NTILE(2) OVER(ORDER BY AVG(Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode
E. SELECT StudentCode AS Code, Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY SubjectCode ORDER BY Marks ASC) AS Rank FROM StudentMarks) tmp WHERE Rank = 1
F. SELECT StudentCode AS Code, Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY SubjectCode ORDER BY Marks DESC) AS Rank FROM StudentMarks) tmp WHERE Rank = 1
G. SELECT StudentCode AS Code, Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY StudentCode ORDER BY Marks ASC) AS Rank FROM StudentMarks) tmp WHERE Rank = 1
H. SELECT StudentCode AS Code, Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANXO OVER(PARTITION BY StudentCode ORDER BY Marks DESC) AS Rank FROM StudentMarks) tmp WHERE Rank = 1
Answer: F
Q5. You administer a Microsoft SQL Server 2012 database.
The database contains a table named Employee. Part of the Employee table is shown in the exhibit. (Click the Exhibit button.)
Unless stated above, no columns in the Employee table reference other tables.
Confidential information about the employees is stored in a separate table named EmployeeData. One record exists within EmployeeData for each record in the Employee table.
You need to assign the appropriate constraints and table properties to ensure data integrity and visibility.
On which column in the Employee table should you create a Primary Key constraint for this table?
A. DateHired
B. Departments
C. EmployeeID
D. EmployeeNum
E. FirstName
F. JobTitle
G. LastName
H. MiddleName
I. ReportsToID
Answer: C
Q6. You administer a Microsoft SQL Server database named Sales. The database is 3 terabytes in size. The Sales database is configured as shown in the following table.
You discover that Sales_2.ndf is corrupt. You need to recover the corrupted data in the minimum amount of time. What should you do?
A. Perform a file restore.
B. Perform a transaction log restore.
C. Perform a restore from a full backup.
D. Perform a filegroup restore.
Answer: A
Q7. You administer a Microsoft SQL Server 2012 database that includes a table named Products. The Products table has columns named Productld, ProductName, and CreatedDateTime.
The table contains a unique constraint on the combination of ProductName and CreatedDateTime.
You need to modify the Products table to meet the following requirements:
. Remove all duplicates of the Products table based on the ProductName column. . Retain only the newest Products row.
Which Transact-SQL query should you use?
A. WITH CTEDupRecords AS ( SELECT MAX(CreatedDateTime) AS CreatedDateTime, ProductName FROM Products GROUP BY ProductName HAVING COUNT(*) > 1 ) DELETE p FROM Products p JOIN CTEDupRecords cte ON B. ProductName = cte.ProductName AND p.CreatedDateTime > cte.CreatedDateTime
C. WITH CTEDupRecords AS ( SELECT MAX(CreatedDateTime) AS CreatedDateTime, ProductName FROM Products GROUP BY ProductName HAVING COUNT(*) > 1 ) DELETE p FROM Products p JOIN CTEDupRecords cte ON cte.ProductName = p.ProductName AND cte.CreatedDateTime > p.CreatedDateTime
D. WITH CTEDupRecords AS ( SELECT MIN(CreatedDateTime) AS CreatedDateTime, ProductName FROM Products GROUP BY ProductName ) DELETE p FROM Products p JOIN CTEDupRecords cte ON
E. ProductName = cte.ProductName
F. WITH CTEDupRecords AS ( SELECT MAX(CreatedDateTime) AS CreatedDateTime, ProductName FROM Products GROUP BY ProductName HAVING COUNT(*) > 1 ) DELETE p FROM Products p JOIN CTEDupRecords cte ON
G. ProductName = cte.ProductName
Answer: B
Q8. You are developing a database application by using Microsoft SQL Server 2012.
An application that uses a database begins to run slowly.
Your investigation shows the root cause is a query against a read-only table that has a
clustered index.
The query returns the following six columns:
...
One column in its WHERE clause contained in a non-clustered index · Four additional columns One COUNT (*) column based on a grouping of the four additional columns
You need to optimize the statement.
What should you do?
A. Add a HASH hint to the query.
B. Add a LOOP hint to the query.
C. Add a FORCESEEK hint to the query.
D. Add an INCLUDE clause to the index.
E. Add a FORCESCAN hint to the Attach query.
F. Add a columnstore index to cover the query.
G. Enable the optimize for ad hoc workloads option.
H. Cover the unique clustered index with a columnstore index.
I. Include a SET FORCEPLAN ON statement before you run the query.
J. Include a SET STATISTICS PROFILE ON statement before you run the query.
K. Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.
L. Include a SET TRANSACTION ISOLATION LEVEL REPEATABLE READ statement before you run the query.
M. Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.
N. Include a SET TRANSACTION ISOLATION LEVEL SERIALIZABLE statement before you run the query.
Answer: F
Q9. You develop a Microsoft SQL Server 2012 database. You create a view that performs the following tasks:
. Joins 8 tables that contain up to 500,000 records each.
. Performs aggregations on 5 fields.
The view is frequently used in several reports.
You need to improve the performance of the reports.
What should you do?
A. Convert the view into a table-valued function.
B. Convert the view into a Common Table Expression (CTE).
C. Convert the view into an indexed view.
D. Convert the view into a stored procedure and retrieve the result from the stored procedure into a temporary table.
Answer: C
Q10. You use Microsoft SQL Server 2012 to develop a database application.
You create a stored procedure named dbo.ModifyData that can modify rows.
You need to ensure that when the transaction fails, dbo.ModifyData meets the following requirements:
. Does not return an error
. Closes all opened transactions
Which Transact-SQL statement should you use?
A. BEGIN TRANSACTION BEGIN TRY EXEC dbo.ModifyData COMMIT TRANSACTION END TRY BEGIN CATCH IF @@ TRANCOUNT = 0 ROLLBACK TRANSACTION; END CATCH
B. BEGIN TRANSACTION BEGIN TRY EXEC dbo.ModifyData COMMIT TRANSACTION END TRY BEGIN CATCH IF @@ERROR != 0 ROLLBACK TRANSACTION; THROW; END CATCH
C. BEGIN TRANSACTION BEGIN TRY EXEC dbo.ModifyData
COMMIT TRANSACTION END TRY BEGIN CATCH IF @@TRANCOUNT = 0 ROLLBACK TRANSACTION; THROW; END CATCH
D. BEGIN TRANSACTION BEGIN TRY EXEC dbo.ModifyData COMMIT TRANSACTION END TRY BEGIN CATCH IF @@ERROR != 0 ROLLBACK TRANSACTION; END CATCH
Answer: D