Microsoft Querying Data with Transact-SQL (70-761) Free Practice Test
Question 1
You have a table named HumanResources.Department that was created with the query shown in the exhibit.
(Click the Exhibit button.)
You need to query temporal data in the table.
In the table below, identify the Transact-SQL segments that must be used to retrieve the appropriate data.
NOTE: Make only one selection in each column.
(Click the Exhibit button.)
You need to query temporal data in the table.
In the table below, identify the Transact-SQL segments that must be used to retrieve the appropriate data.
NOTE: Make only one selection in each column.
Correct Answer:
Explanation
AS OF: Returns a table with a rows containing the values that were actual (current) at the specified point in time in the past.
CONTAINED IN: If you search for non-current row versions only, we recommend you to use CONTAINED IN as it works only with the history table and will yield the best query performance.
Question 2
You run the following Transact-SQL statement:
You use the table to store data about training courses: when they finished the location, and the number of participants in the courses.
You need to display a result set that shows aggregates for all possible combinations of the number of participants.
Which Transact-SQL statement should you run?
A)
B)
C)
D)
You use the table to store data about training courses: when they finished the location, and the number of participants in the courses.
You need to display a result set that shows aggregates for all possible combinations of the number of participants.
Which Transact-SQL statement should you run?
A)
B)
C)
D)
Correct Answer: B
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 3
You have a database that contains the following tables:
You need to write a query that returns a list of all customers who have not placed orders.
Which Transact-SQL statement should you run?
You need to write a query that returns a list of all customers who have not placed orders.
Which Transact-SQL statement should you run?
Correct Answer: C
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 4
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 table that was created by running the following Transact-SQL statement:
The Products table includes the data shown in the following table:
TotalUnitPrice is calculated by using the following formula:
TotalUnitPrice = UnitPrice * (UnitsInStock + UnitsOnOrder)
You need to ensure that the value returned for TotalUnitPrice for ProductB is equal to 600.00.
Solution: You run the following Transact-SQL statement:
Does the solution meet the goal?
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 table that was created by running the following Transact-SQL statement:
The Products table includes the data shown in the following table:
TotalUnitPrice is calculated by using the following formula:
TotalUnitPrice = UnitPrice * (UnitsInStock + UnitsOnOrder)
You need to ensure that the value returned for TotalUnitPrice for ProductB is equal to 600.00.
Solution: You run the following Transact-SQL statement:
Does the solution meet the goal?
Correct Answer: B
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 5
You are developing a training management solution. You run the following Transact-SQL statement:
You need to create an indexed view to return all the courses where the value of TrainerEval is equal to or higher than 8.5.
Which three Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments from the list of Transact-SQL segments to the answer area and arrange them in the correct order.
You need to create an indexed view to return all the courses where the value of TrainerEval is equal to or higher than 8.5.
Which three Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments from the list of Transact-SQL segments to the answer area and arrange them in the correct order.
Correct Answer:
Explanation
References: https://docs.microsoft.com/en-us/sql/relational-databases/views/create-indexed-views
Question 6
You are creating a training management application. You run the following Transact-SQL statement:
You must build a report that returns course identifiers and the average evaluation score for each course. The result set must include only one score for each employee for each course.
You need to create a query that returns the required data.
How should you complete the Transact-SQL statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You must build a report that returns course identifiers and the average evaluation score for each course. The result set must include only one score for each employee for each course.
You need to create a query that returns the required data.
How should you complete the Transact-SQL statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Correct Answer:
Question 7
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:
Task level is defined using the following rules:
You need to determine the task level for each task in the hierarchy.
Which five Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments from the list of Transact-SQL segments to the answer area and arrange them in the correct order.
You query a database that includes two tables: Project and Task. The Project table includes the following columns:
Task level is defined using the following rules:
You need to determine the task level for each task in the hierarchy.
Which five Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments from the list of Transact-SQL segments to the answer area and arrange them in the correct order.
Correct Answer:
Explanation
Box 1: SELECT CAST (NULL AS INT) AS ParentTaskID, etc.
This statement selects all tasks with task level 0.
The ParentTaskID could be null so we should use CAST (NULL AS INT) AS ParentTaskID.
Box 2: UNION
We should use UNION and not UNION ALL as we do not went duplicate rows.
UNION specifies that multiple result sets are to be combined and returned as a single result set.
Incorrect: Not UNION ALL: ALL incorporates all rows into the results. This includes duplicates. If not specified, duplicate rows are removed.
Box 3, Box 4, Box 5:
These statements select all tasks with task level >0.
References:
https://msdn.microsoft.com/en-us/library/ms180026.aspx
Question 8
You are building a stored procedure named sp1 that calls a stored procedure named SP2.
SP2 calls another stored procedure named SP3 that returns a Recordset. The Recordset is stored in a temporary table.
You need to ensure that SP2 returns a text value to sp1.
What should you do?
SP2 calls another stored procedure named SP3 that returns a Recordset. The Recordset is stored in a temporary table.
You need to ensure that SP2 returns a text value to sp1.
What should you do?
Correct Answer: D
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 create a table named Customer by running the following Transact-SQL statement:
You create a cursor by running the following Transact-SQL statement:
If the credit limit is zero, you must delete the customer record while fetching data.
You need to add the DELETE statement.
Solution: You add the following Transact-SQL statement:
Does the solution meet the goal?
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 create a cursor by running the following Transact-SQL statement:
If the credit limit is zero, you must delete the customer record while fetching data.
You need to add the DELETE statement.
Solution: You add the following Transact-SQL statement:
Does the solution meet the goal?
Correct Answer: A
Question 10
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply to that question.
You have a database for a banking system. The database has two tables named tblDepositAcct and tblLoanAcct that store deposit and loan accounts, respectively. Both tables contain the following columns:
You need to determine the total number of customers who have either deposit accounts or loan accounts, but not both types of accounts.
Which Transact-SQL statement should you run?
You have a database for a banking system. The database has two tables named tblDepositAcct and tblLoanAcct that store deposit and loan accounts, respectively. Both tables contain the following columns:
You need to determine the total number of customers who have either deposit accounts or loan accounts, but not both types of accounts.
Which Transact-SQL statement should you run?
Correct Answer: C
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 11
You work for an organization that monitors seismic activity around volcanos. You have a table named GroundSensors. The table stored data collected from seismic sensors. It includes the columns describes in the following table:
The database also contains a scalar value function named NearestMountain that accepts a parameter of type geography and returns the name of the mountain that is nearest to the sensor.
You need to create a query that shows the average of the normalized readings from the sensors for each mountain. The query must meet the following requirements:
* Return the average normalized readings named AverageReading.
* Return the nearest mountain name named Mountain.
* Do not return any other columns.
* Exclude sensors for which no normalized reading exists.
Construct the query using the following guidelines:
* Use one part names to reference tables, columns and functions.
* Do not use parentheses unless required.
* Define column headings using the AS keyword.
* Do not surround object names with square brackets.
Part of the correct Transact-SQL has been provided in the answer area below. Enter the code in the answer area that resolves the problem and meets the stated goals or requirements. You can add code within the code that has been provided as well as below it.
Use the Check Syntax button to verify your work. Any syntax or spelling errors will be reported by line and character position.
The database also contains a scalar value function named NearestMountain that accepts a parameter of type geography and returns the name of the mountain that is nearest to the sensor.
You need to create a query that shows the average of the normalized readings from the sensors for each mountain. The query must meet the following requirements:
* Return the average normalized readings named AverageReading.
* Return the nearest mountain name named Mountain.
* Do not return any other columns.
* Exclude sensors for which no normalized reading exists.
Construct the query using the following guidelines:
* Use one part names to reference tables, columns and functions.
* Do not use parentheses unless required.
* Define column headings using the AS keyword.
* Do not surround object names with square brackets.
Part of the correct Transact-SQL has been provided in the answer area below. Enter the code in the answer area that resolves the problem and meets the stated goals or requirements. You can add code within the code that has been provided as well as below it.
Use the Check Syntax button to verify your work. Any syntax or spelling errors will be reported by line and character position.
Correct Answer:
Please see explanation
Explanation
1 SELECT avg (normalizedreading) as AverageReading, location as Mountain
2 FROM GroundSensors
3 WHERE normalizedreading is not null
Note: On line 1 change to AverageReading and change to Mountain.
Explanation
1 SELECT avg (normalizedreading) as AverageReading, location as Mountain
2 FROM GroundSensors
3 WHERE normalizedreading is not null
Note: On line 1 change to AverageReading and change to Mountain.
Question 12
You have a database that stored information about servers and application errors. The database contains the following tables.
Servers
Errors
You need to return all error log messages and the server where the error occurs most often.
Which Transact-SQL statement should you run?
Servers
Errors
You need to return all error log messages and the server where the error occurs most often.
Which Transact-SQL statement should you run?
Correct Answer: B
Question 13
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 table named Products that stores information about products your company sells. The table has a column named ListPrice that stores retail pricing information for products.
Some products are used only internally by the company. Records for these products are maintained in the Products table for inventory purposes. The price for each of these products is $0.00. Customers are not permitted to order these products.
You need to increase the list price for products that cost less than $100 by 10 percent. You must only increase pricing for products that customers are permitted to order.
Solution: You run the following Transact-SQL statement:
Does the solution meet the goal?
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 table named Products that stores information about products your company sells. The table has a column named ListPrice that stores retail pricing information for products.
Some products are used only internally by the company. Records for these products are maintained in the Products table for inventory purposes. The price for each of these products is $0.00. Customers are not permitted to order these products.
You need to increase the list price for products that cost less than $100 by 10 percent. You must only increase pricing for products that customers are permitted to order.
Solution: You run the following Transact-SQL statement:
Does the solution meet the goal?
Correct Answer: A
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 14
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 on this series.
You have a database that tracks orders and deliveries for customers in North America. System versioning is enabled for all tables. The database contains the Sales.Customers, Application.Cities, and Sales.CustomerCategories tables.
Details for the Sales.Customers table are shown in the following table:
Details for the Application.Cities table are shown in the following table:
Details for the Sales.CustomerCategories table are shown in the following table:
You are preparing a promotional mailing. The mailing must only be sent to customers in good standing that live in medium and large cities.
You need to write a query that returns all customers that are not on credit hold who live in cities with a population greater than 10,000.
How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact-SQL segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
You have a database that tracks orders and deliveries for customers in North America. System versioning is enabled for all tables. The database contains the Sales.Customers, Application.Cities, and Sales.CustomerCategories tables.
Details for the Sales.Customers table are shown in the following table:
Details for the Application.Cities table are shown in the following table:
Details for the Sales.CustomerCategories table are shown in the following table:
You are preparing a promotional mailing. The mailing must only be sent to customers in good standing that live in medium and large cities.
You need to write a query that returns all customers that are not on credit hold who live in cities with a population greater than 10,000.
How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact-SQL segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Correct Answer:
Explanation
Box 1: IN (
The IN clause determines whether a specified value matches any value in a subquery or a list.
Syntax: test_expression [ NOT ] IN ( subquery | expression [ ,...n ] )
Where subquery
Is a subquery that has a result set of one column. This column must have the same data type as test_expression.
Box 2: WHERE
Box 3: AND [IsOnCreditHold] = 0
Box 4: )
References: https://msdn.microsoft.com/en-us/library/ms177682.aspx