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2017 March New Version | Microsoft 70-761: Querying Data with Transact-SQL Exam Dumps with PDF and VCE Updated for Free Today!
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QUESTION 6
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section. you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You create a table named Customer by running the following Transact-SQL statement:
 
You must insert the following data into the Customer table:
 
You need to ensure that both records are inserted or neither record is inserted.
Solution: You run the following Transact-SQL statement:
 
Does the solution meet the goal?

A.    Yes
B.    No

Answer: A
Explanation:
With the INSERT INTO..VALUES statement we can insert both values with just one statement. This ensures that both records or neither is inserted.
References: https://msdn.microsoft.com/en-us/library/ms174335.aspx

QUESTION 7
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section. you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database that tracks orders and deliveries for customers in North America. The database contains the following tables:
Sales.Customers
 
Application.Cities
 
Sales.CustomerCategories
 
The company’s development team is designing a customer directory application. The application must list customers by the area code of their phone number. The area code is defined as the first three characters of the phone number.
The main page of the application will be based on an indexed view that contains the area and phone number for all customers.
You need to return the area code from the PhoneNumber field.
Solution: You run the following Transact-SQL statement:
 
Does the solution meet the goal?

A.    Yes
B.    No

Answer: A
Explanation:
As the result of the function will be used in an indexed view we should use schemabinding.
References: https://sqlstudies.com/2014/08/06/schemabinding-what-why/

QUESTION 8
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section. you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database that tracks orders and deliveries for customers in North America.
The database contains the following tables:
 
Application. Cities
 
Sales. CustomerCatagories
 
The company’s development team is designing a customer directory application. The application must list customers by the area code of their phone number.
The area code is defined as the first three characters of the phone number.
The main page of the application will be based on an indexed view that contains the area and phone number for all customers.
You need to return the area code from the PhoneNumber field.
Solution: You run the following Transact-SQL statement:
 
Does the solution meet the goal?

A.    Yes
B.    No

Answer: B
Explanation:
As the result of the function will be used in an indexed view we should use schemabinding.
References: https://sqlstudies.com/2014/08/06/schemabinding-what-why/

QUESTION 9
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section. you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database that tracks orders and deliveries for customers in North America. The database contains the following tables:
Sales.Customers
 
Application.Cities
 
Sales.CustomerCategories
 
The company’s development team is designing a customer directory application.
The application must list customers by the area code of their phone number. The area code is defined as the first three characters of the phone number.
The main page of the application will be based on an indexed view that contains the area and phone number for all customers.
You need to return the area code from the PhoneNumber field.
Solution: You run the following Transact-SQL statement:
 
Does the solution meet the goal?

A.    Yes
B.    No

Answer: B
Explanation:
The variable max, in the line DECLARE @areaCode nvarchar(max), is not defined.

QUESTION 10
Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
You query a database that includes two tables: Project and Task.
The Project table includes the following columns:
 
You plan to run the following query to update tasks that are not yet started:
 
You need to return the total count of tasks that are impacted by this UPDATE operation, but are not associated with a project.
What set of Transact-SQL statements should you run?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: B
Explanation:
The WHERE clause of the third line should be WHERE ProjectID IS NULL, as we want to count the tasks that are not associated with a project.

QUESTION 11
Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
Hotspot Question
You query a database that includes two tables: Project and Task.
The Project table includes the following columns:
 
You need to identify the owner of each task by using the following rules:
– Return each task’s owner if the task has an owner.
– If a task has no owner, but is associated with a project that has an owner, return the project’s owner.
– Return the value -1 for all other cases.
How should you complete the Transact-SQL statement? To answer, select the appropriate Transact-SQL segments in the answer area.
 
Answer:
 
Explanation:
Box 1: COALESCE
COALESCE evaluates the arguments in order and returns the current value of the first expression that initially does not evaluate to NULL.
Box 2: T.UserID, p.UserID, -1
– Return each task’s owner if the task has an owner.
– If a task has no owner, but is associated with a project that has an owner, return the project’s owner.
– Return the value -1 for all other cases.
Box 3: RIGHT JOIN
The RIGHT JOIN keyword returns all rows from the right table (table2), with the matching rows in the left table (table1). The result is NULL in the left side when there is no match. Here the right side could be NULL as the projectID of the task could be NULL.
References:
https://msdn.microsoft.com/en-us/library/ms190349.aspx
http://www.w3schools.com/Sql/sql_join_right.asp


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