June 20, 2018

Free 70-461 Querying SQL Server Practice Test

70-461 is an exam for Microsoft SQL Server 2012/2014. Exams include Create database objects (20–25%), Work with data (25–30%), Modify data (20–25%), Troubleshoot and optimize. (25–30%) Four sections. through the 70-461 exam You can toward to MCP, MCSA, and MCSE certification.

If you are now working as a SQL Server database administrator, system engineer, you can improve the knowledge of writing queries by learning 70-461 dumps.

Share some 70-461 questions for FREE now and let you practice online and PASS the 70-461 exam fast.

1. You use Microsoft SQL Server 2012 to create a stored procedure as shown in the following code segment. (Line numbers are included for reference only.)

The procedure can be called within other transactions.

You need to ensure that when the DELETE statement from the HumanResourcesJobCandidate table succeeds, the modification is retained even if the insert into the Audit.Log table fails.

Which code segment should you add to line 14?

IF @@TRANCOUNT = 0

IF (XACT_STATE ( ) ) = 0

IF (XACT_STATE ( ) ) = 1

IF @@TRANCOUNT = l

2. A table named Profits stores the total profit made each year within a territory. The Profits table has columns named Territory, Year, and Profit. You need to create a report that displays the profits made by each territory for each year and its preceding year.

Which Transact-SQL query should you use?

SELECT Territory, Year, Profit, LAG(Profit, 1, 0) OVER(PARTITION BY Year ORDER BY Territory) AS NextProfit FROM Profits

SELECT Territory, Year, Profit, LAG(Profit, 1, 0) OVER(PARTITION BY Territory ORDER BY Year) AS NextProfit FROM Profits

SELECT Territory, Year, Profit, LEAD(Profit, 1, 0) OVER(PARTITION BY Territory ORDER BY Year) AS NextProfit FROM Profits

SELECT Territory, Year, Profit, LEAD(Profit, 1, 0) OVER(PARTITION BY Year ORDER BY Territory) AS NextProfit FROM Profits

3. You use Microsoft SQL Server 2012 to develop a database application.

Your application sends data to an NVARCHAR(MAX) variable named @var.

You need to write a Transact-SQL statement that will find out the success of a cast to a decimal (36,9).

Which code segment should you use?

BEGIN TRY SELECT convert (decimal(36,9), @var) as Value, 'True' As BadCast END TRY BEGIN CATCH SELECT convert (decimal(36,9), @var) as Value, 'False' As BadCast END CATCH

TRY( SELECT convert (decimal(36,9), @var) SELECT 'True' As BadCast ) CATCH( SELECT 'False' As BadCast )

SELECT CASE WHEN convert (decimal(36,9), @var) IS NULL THEN 'True' ELSE 'False' END AS BadCast

SELECT IF(TRY_PARSE(@var AS decimal(36,9)) IS NULL, 'True', 'False' ) AS BadCast

4. You are writing a set of queries against a FILESTREAM-enabled database.

You create a stored procedure that will update multiple tables within a transaction.

You need to ensure that if the stored procedure raises a runtime error, the entire transaction is terminated and rolled back.

Which Transact-SQL statement should you include at the beginning of the stored procedure?

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE

SET XACT_ABORT OFF

SET TRANSACTION ISOLATION LEVEL SNAPSHOT

SET IMPLICIT_TRANSACTIONS ON

SET XACT_ABORT ON

SET IMPLICIT TRANSACTIONS OFF

5. 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 applications.

What should you create for each application?

Synonyms

Common table expressions

Views

Temporary tables

6. You administer a Microsoft SQL Server 2012 database named ContosoDb.

Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.

Which Transact-SQL query should you use?

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers=CustomerId = 1 FOR XML RAW, ELEMENTS

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name AS '@Name', Country AS '@Country', OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML PATH ('Customers')

SELECT Name AS 'Customers/Name', Country AS 'Customers/Country', OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML PATH ('Customers')

7. You administer a Microsoft SQL Server 2012 database named ContosoDb.

Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.

<CUSTOMERS Name="Customer A" Country="Australia">

<ORDERS OrderID="1" OrderDate="2001-01-01" Amount="3400.00" />

<ORDERS OrderID="2" OrderDate="2002-01-01" Amount="4300.00" />

</CUSTOMERS>

Which Transact-SQL query should you use?

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW, ELEMENTS

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId - Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

8. You administer a Microsoft SQL Server 2012 database named ContosoDb.

Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.

Which Transact-SQL query should you use?

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW, ELEMENTS

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name AS 'Customers/Name', Country AS 'Customers/Country', OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML PATH ('Customers')

9. You develop a Microsoft SQL Server 2012 server database that supports an application.

The application contains a table that has the following definition:

CREATE TABLE Inventory (

ItemID int NOT NULL PRIMARY KEY,

ItemsInStore int NOT NULL,

ItemsInWarehouse int NOT NULL)

You need to create a computed column that returns the sum total of the ItemsInStore and ItemsInWarehouse values for each row.

The new column is expected to be queried heavily, and you need to be able to index the column.

Which Transact-SQL statement should you use?

ALTER TABLE Inventory ADD TotalItems AS ItemslnStore + ItemsInWarehouse

ALTER TABLE Inventory ADD TotalItems AS ItemsInStore + ItemsInWarehouse PERSISTED

ALTER TABLE Inventory ADD TotalItems AS SUM(ItemsInStore, ItemsInWarehouse) PERSISTED

ALTER TABLE Inventory ADD TotalItems AS SUM(ItemsInStore, ItemsInWarehouse)

10. You develop a Microsoft SQL Server 2012 database that contains a table named Customers.

The Customers table has the following definition:

You need to create an audit record only when either the MobileNumber or HomeNumber column is updated.

Which Transact-SQL query should you use?

CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF COLUMNS_UPDATED (HomeNumber, MobileNumber) - - Create Audit Records

CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF EXISTS( SELECT HomeNumber from inserted) OR EXISTS (SELECT MobileNumber FROM inserted) - - Create Audit Records

CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF COLUMNS_CHANGED (HomeNumber, MobileNumber) - - Create Audit Records

CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF UPDATE (HomeNumber) OR UPDATE (MobileNumber) - - Create Audit Records

11. 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?

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

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

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

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

12. 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?

Convert the view into a table-valued function.

Convert the view into a Common Table Expression (CTE).

Convert the view into an indexed view.

Convert the view into a stored procedure and retrieve the result from the stored procedure into a temporary table.

13. You are a database developer of a Microsoft SQL Server 2012 database.

The database contains a table named Customers that has the following definition:

You need to ensure that the CustomerId column in the Orders table contains only values that exist in the CustomerId column of the Customer table.

Which Transact-SQL statement should you use?

ALTER TABLE Orders ADD CONSTRAINT FX_Orders_CustomerID FOREIGN KEY (CustomerId) REFERENCES Customer (CustomerId)

ALTER TABLE Customer ADD CONSTRAINT FK_Customer_CustomerID FOREIGN KEY {CustomerID) REFERENCES Orders (CustomerId)

ALTER TABLE Orders ADD CONSTRAINT CK_Orders_CustomerID CHECK (CustomerId IN (SELECT CustomerId FROM Customer))

ALTER TABLE Customer ADD OrderId INT NOT NULL; ALTER TABLE Customer ADD CONSTRAINT FK_Customer_OrderID FOREIGN KEY (OrderID) REFERENCES Orders (OrderID);

ALTER TABLE Orders ADD CONSTRAINT PK Orders CustomerId PRIMARY KEY (CustomerID)

14. You have three tables that contain data for dentists, psychiatrists, and physicians. You create a view that is used to look up their email addresses and phone numbers.

The view has the following definition:

You need to ensure that users can update only the phone numbers and email addresses by using this view.

What should you do?

Alter the view. Use the EXPAND VIEWS query hint along with each SELECT statement.

Create an INSTEAD OF UPDATE trigger on the view.

Drop the view. Re-create the view by using the SCHEMABINDING clause, and then create an index on the view.

Create an AFTER UPDATE trigger on the view.

15. You develop a Microsoft SQL Server 2012 database. You create a view from the Orders and OrderDetails tables by using the following definition.

You need to ensure that users are able to modify data by using the view.

What should you do?

Create an AFTER trigger on the view.

Modify the view to use the WITH VIEW_METADATA clause.

Create an INSTEAD OF trigger on the view.

Modify the view to an indexed view.

16. Your database contains tables named Products and ProductsPriceLog. The Products table contains columns named ProductCode and Price. The ProductsPriceLog table contains columns named ProductCode, OldPrice, and NewPrice.

The ProductsPriceLog table stores the previous price in the OldPrice column and the new price in the NewPrice column.

You need to increase the values in the Price column of all products in the Products table by 5 percent. You also need to log the changes to the ProductsPriceLog table.

Which Transact-SQL query should you use?

UPDATE Products SET Price = Price * 1.05 OUTPUT inserted.ProductCode, deleted.Price, inserted.Price INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice)

UPDATE Products SET Price = Price * 1.05 OUTPUT inserted.ProductCode, inserted.Price, deleted.Price INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice)

UPDATE Products SET Price = Price * 1.05 OUTPUT inserted.ProductCode, deleted.Price, inserted.Price * 1.05 INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice)

UPDATE Products SET Price = Price * 1.05 INSERT INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice) SELECT ProductCode, Price, Price * 1.05 FROM Products

17. 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?

Add a HASH hint to the query.

Add a LOOP hint to the query.

Add a FORCESEEK hint to the query.

Add an INCLUDE clause to the index.

Add a FORCESCAN hint to the Attach query.

Add a columnstore index to cover the query.

Enable the optimize for ad hoc workloads option.

Cover the unique clustered index with a columnstore index.

Include a SET FORCEPLAN ON statement before you run the query.

Include a SET STATISTICS PROFILE ON statement before you run the query.

Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.

Include a SET TRANSACTION ISOLATION LEVEL REPEATABLE READ statement before you run the query.

Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.

Include a SET TRANSACTION ISOLATION LEVEL SERIALIZABLE statement before you run the query.

18. You administer a Microsoft SQL Server 2012 database named ContosoDb.

Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.

Which Transact-SQL query should you use?

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML RAW, ELEMENTS

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO

SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML AUTO, ELEMENTS

SELECT Name AS '@Name', Country AS '@Country', OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML PATH ('Customers')

SELECT Name AS 'Customers/Name', Country AS 'Customers/Country', OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers.CustomerId = 1 FOR XML PATH ('Customers')

19. You administer a Microsoft SQL Server 2012 database named ContosoDb.

Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.