msdn 70-461 (31 to 45)

Exam Code: 70-461 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Querying Microsoft SQL Server 2012
Certification Provider: Microsoft
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2021 Jun 70-461 Study Guide Questions:

Q31. You develop a Microsoft SQL Server 2012 database that has two tables named SavingAccounts and LoanAccounts. Both tables have a column named AccountNumber of the nvarchar data type. 

You use a third table named Transactions that has columns named TransactionId AccountNumber, Amount, and TransactionDate. 

You need to ensure that when multiple records are inserted in the Transactions table, only the records that have a valid AccountNumber in the SavingAccounts or LoanAccounts are inserted. 

Which Transact-SQL statement should you use? 

A. CREATE TRIGGER TrgValidateAccountNumber ON Transactions INSTEAD OF INSERT AS BEGIN INSERT INTO Transactions SELECT TransactionID,AccountNumber,Amount,TransactionDate FROM inserted WHERE AccountNumber IN (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) END 

B. CREATE TRIGGER TrgValidateAccountNumber ON Transactions FOR INSERT AS BEGIN INSERT INTO Transactions SELECT TransactionID,AccountNumber,Amount,TransactionDate FROM inserted WHERE AccountNumber IN (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) END 

C. CREATE TRIGGER TrgValidateAccountNumber ON Transactions INSTEAD OF INSERT AS BEGIN IF EXISTS ( SELECT AccountNumber FROM inserted EXCEPT (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) BEGIN ROLLBACK TRAN END END 

D. CREATE TRIGGER TrgValidateAccountNumber ON Transactions FOR INSERT AS BEGIN IF EXISTS ( SELECT AccountNumber FROM inserted EXCEPT (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) BEGIN ROLLBACK TRAN END END 

Answer: A 

Q32. You use Microsoft SQL Server 2012 database to develop a shopping cart application. 

You need to invoke a table-valued function for each row returned by a query. 

Which Transact-SQL operator should you use? 

A. CROSS JOIN 

B. UNPIVOT 

C. PIVOT 

D. CROSS APPLY 

Answer: D 

Q33. You support a database structure shown in the exhibit. (Click the Exhibit button.) 

You need to write a query that displays the following details: 

Total sales made by sales people, year, city, and country 

Sub totals only at the city level and country level 

A grand total of the sales amount 

Which Transact-SQL query should you use? 

A. SELECT SalesPerson.Name, Country, City, 

DatePart(yyyy, SaleDate) AS Year, Sum(Amount) AS Total 

FROM Sale INNER JOIN SalesPerson 

ON Sale.SalesPersonID = SalesPerson.SalesPersonID 

GROUP BY GROUPING SETS((SalesPerson.Name, Country, City, DatePart(yyyy, 

SaleDate)), (Country, City), (Country), ()) 

B. SELECT SalesPerson.Name, Country, City, 

DatePart(yyyy, SaleDate) AS Year, Sum(Amount) AS Total 

FROM Sale INNER JOIN SalesPerson 

ON Sale.SalesPersonID = SalesPerson.SalesPersonID 

GROUP BY CUBE(SalesPerson.Name, Country, City, DatePart(yyyy, SaleDate)) 

C. SELECT SalesPerson.Name, Country, City, 

DatePart(yyyy, SaleDate) AS Year, Sum(Amount) AS Total 

FROM Sale INNER JOIN SalesPerson 

ON Sale.SalesPersonID = SalesPerson.SalesPersonID 

GROUP BY CUBE(SalesPerson.Name, DatePart(yyyy, SaleDate), City, Country) 

D. SELECT SalesPerson.Name, Country, City, DatePart(yyyy, SaleDate) AS Year, Sum(Amount) AS Total FROM Sale INNER JOIN SalesPerson ON Sale.SalesPersonID = SalesPerson.SalesPersonID GROUP BY ROLLUP(SalesPerson.Name, DatePart(yyyy, SaleDate), City, Country) 

Answer: A 

Q34. You are a database developer for an application hosted on a Microsoft SQL Server 2012 server. 

The database contains two tables that have the following definitions: 

Global customers place orders from several countries. 

You need to view the country from which each customer has placed the most orders. 

Which Transact-SQL query do you use? 

A. SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM Customer c INNER JOIN (SELECT CustomerID, ShippingCountry, RANK() OVER (PARTITION BY CustomerID ORDER BY COUNT(OrderAmount) DESC) AS Rnk FROM Orders GROUP BY CustomerID, ShippingCountry) AS o ON c.CustomerID = o.CustomerID WHERE o.Rnk = 1 

B. SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM (SELECT c.CustomerID, c.CustomerName, o.ShippingCountry, RANK() OVER (PARTITION BY CustomerID ORDER BY COUNT(o.OrderAmount) ASC) AS Rnk FROM Customer c INNER JOIN Orders o ON c.CustomerID = o.CustomerID GROUP BY c.CustomerID, c.CustomerName, o.ShippingCountry) cs WHERE Rnk = 1 

C. SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM Customer c INNER JOIN (SELECT CustomerID, ShippingCountry, RANK() OVER (PARTITION BY CustomerID ORDER BY OrderAmount DESC) AS Rnk FROM Orders GROUP BY CustomerID, ShippingCountry) AS o ON c.CustomerID = o.CustomerID WHERE o.Rnk = 1 

D. SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM Customer c INNER JOIN (SELECT CustomerID, ShippingCountry, COUNT(OrderAmount) DESC) AS OrderAmount FROM Orders GROUP BY CustomerID, ShippingCountry) AS o ON c.CustomerID = o.CustomerID ORDER BY OrderAmount DESC 

Answer: A 

Q35. CORRECT TEXT 

You have a database that contains the tables as shown in the exhibit. (Click the Exhibit button.) 

You have the following query: 

You need to recreate the query to meet the following requirements: 

Reference columns by using one-part names only. 

Sort aggregates by SalesTerritoryID, and then by ProductID. 

Order the results in descending order from SalesTerritoryID to ProductID. 

The solution must use the existing SELECT clause and FROM clause. 

.... 

Which code segment should you use? 

To answer, type the correct code in the answer area. 

Answer: 

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Q36. You develop a database for a travel application. You need to design tables and other database objects. 

You need to store media files in several tables. 

Each media file is less than 1 MB in size. The media files will require fast access and will be retrieved frequently. 

What should you do? 

A. Use the CAST function. 

B. Use the DATE data type. 

C. Use the FORMAT function. 

D. Use an appropriate collation. 

E. Use a user-defined table type. 

F. Use the VARBINARY data type. 

G. Use the DATETIME data type. 

H. Use the DATETIME2 data type. 

I. Use the DATETIMEOFFSET data type. 

J. Use the TODATETIMEOFFSET function. 

Answer: F 

Q37. 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.) 

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 a create a unique constraint? 

A. DateHired 

B. DepartmentID 

C. EmployeelD 

D. EmployeeNum 

E. FirstName 

F. JobTitle 

G. LastName 

H. MiddleName 

I. ReportsToID 

Answer: D 

Q38. 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 

Q39. You use Microsoft SQL Server 2012 to develop a database application. You need to create an object that meets the following requirements: 

Takes an input variable 

Returns a table of values 

Cannot be referenced within a view 

Which object should you use? 

A. Scalar-valued function 

B. Inline function 

C. User-defined data type 

D. Stored procedure 

Answer: D 

Q40. Your database contains a table named SalesOrders. The table includes a DATETIME column named OrderTime that stores the date and time each order is placed. There is a non-clustered index on the OrderTime column. 

The business team wants a report that displays the total number of orders placed on the current day. 

You need to write a query that will return the correct results in the most efficient manner. 

Which Transact-SQL query should you use? 

A. SELECT COUNT(*) FROM SalesOrders 

WHERE OrderTime = CONVERT(DATE, GETDATE()) 

B. SELECT COUNT(*) FROM SalesOrders 

WHERE OrderTime = GETDATE() 

C. SELECT COUNT(*) FROM SalesOrders 

WHERE CONVERT(VARCHAR, OrderTime, 112) = CONVERT(VARCHAR, GETDATE(I, 

112)) 

D. SELECT COUNT(*) FROM SalesOrders 

WHERE OrderTime >= CONVERT(DATE, GETDATE()) 

AND OrderTime < DATEADD(DAY, 1, CONVERT(DATE, GETDATE())) 

Answer: D 

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Q41. 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 a create a self-reference foreign key constraint? 

A. DateHired 

B. DepartmentID 

C. EmployeelD 

D. EmployeeNum 

E. FirstName 

F. JobTitle 

G. LastName 

H. MiddleName 

I. ReportsToID 

Answer: I 

Q42. You develop a database application. You create four tables. Each table stores different categories of products. 

You create a Primary Key field on each table. 

You need to ensure that the following requirements are met: 

The fields must use the minimum amount of space. 

The fields must be an incrementing series of values. 

The values must be unique among the four tables. 

What should you do? 

A. Create a ROWVERSION column. 

B. Create a SEQUENCE object that uses the INTEGER data type. 

C. Use the INTEGER data type along with IDENTITY 

D. Use the UNIQUHDENTTFIER data type along with NEWSEQUENTIALID() 

E. Create a TIMESTAMP column. 

Answer: D 

Q43. 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 

Q44. You administer a Microsoft SQL Server 2012 server. You plan to deploy new features to an application. You need to evaluate existing and potential clustered and non-clustered indexes that will improve performance. 

What should you do? 

A. Query the sys.dm_db_index_usage_stats DMV. 

B. Query the sys.dm_db_missing_index_details DMV. 

C. Use the Database Engine Tuning Advisor. 

D. Query the sys.dm_db_missing_index_columns DMV. 

Answer: C 

Q45. 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