Microsoft 70-761 Online Practice Questions and Exam Preparation

Microsoft 70-761 Online Questions & Answers

• Question 1:

  You are performing a code review of stored procedures. Code at line SP03 fails to run (Line numbers are included for reference only.)

  

  You need to ensure that transactions are rolled back when an error occurs. Which Transact-SQL segment should you insert at line SP07?

  A. If @@Error 0
  B. If @@ TRANCOUNT = 0
  C. If @@ TRANCOUNT > 0
  D. If @@ Error = 0
  C. If @@ TRANCOUNT > 0

  ---

  Using TRY...CATCH in a transaction

  The following example shows how a TRY...CATCH block works inside a transaction. The statement inside the TRY block generates a constraint violation error.

  BEGIN TRANSACTION;

  BEGIN TRY

  -- Generate a constraint violation error.

  DELETE FROM Production.Product

  WHERE ProductID = 980;

  END TRY

  BEGIN CATCH

  SELECT

  ERROR_NUMBER() AS ErrorNumber

  ,ERROR_SEVERITY() AS ErrorSeverity

  ,ERROR_STATE() AS ErrorState

  ,ERROR_PROCEDURE() AS ErrorProcedure

  ,ERROR_LINE() AS ErrorLine

  ,ERROR_MESSAGE() AS ErrorMessage;

  IF @@TRANCOUNT > 0

  ROLLBACK TRANSACTION;

  END CATCH;

  IF @@TRANCOUNT > 0

  COMMIT TRANSACTION;

  GO

  References: https://docs.microsoft.com/en-us/sql/t-sql/language-elements/try-catch-transact-sql

• Question 2:

  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
  A. Yes

  ---

  The following indicates a correct solution:

  

  The function returns a nvarchar(10) value.

  

  Schemabinding is used.

  

  SELECT TOP 1 ... gives a single value

  Note: nvarchar(max) is correct statement.

  nvarchar [ ( n | max ) ]

  Variable-length Unicode string data. n defines the string length and can be a value from 1 through 4,000. max indicates that the maximum storage size is 2^31-1 bytes (2 GB).

  References:

  https://docs.microsoft.com/en-us/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql

  https://sqlstudies.com/2014/08/06/schemabinding-what-why/

• Question 3:

  DRAG DROP

  You have two tables named UserLogin and Employee respectively.

  You need to create a Transact-SQL script that meets the following requirements:

  1. The script must update the value of the IsDeleted column for the UserLogin table to1if the value of the Id column for the UserLogin table is equal to1.

  2. The script must update the value of the IsDeleted column of the Employee table to1if the value ofthe Id column is equal to1for the Employee table when an update to the UserLogin table throws an error.

  3. The error message "No tables updated!" must be produced when an update to the Employee table throws an error.

  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.

  Select and Place:

  

  

  ---

  A TRY block must be immediately followed by an associated CATCH block. Including any other statements between the END TRY and BEGIN CATCH statements generates a syntax error. References: https://msdn.microsoft.com/en-us/library/ms175976.aspx

• 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?

  A. Yes
  B. No
  B. No

  ---

  The NULL value in the UnitsOnOrder field would cause a runtime error.

• Question 5:

  DRAG DROP

  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.

  Start of repeated scenario

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

  

  You review the Employee table and make the following observations:

  Every record has a value in the ManagerID except for the Chief Executive Officer (CEO).

  The FirstName and MiddleName columns contain null values for some records.

  The valid values for the Title column are Sales Representative manager, and CEO.

  You review the SalesSummary table and make the following observations:

  The ProductCode column contains two parts: The first five digits represent a product code, and the last seven digits represent the unit price. The unit price uses the following pattern: ####.##.

  You observe that for many records, the unit price portion of the ProductCode column contains values.

  The RegionCode column contains NULL for some records.

  Sales data is only recorded for sales representatives.

  You are developing a series of reports and procedures to support the business. Details for each report or procedure follow. Sales Summary report: This report aggregates data by year and quarter. The report must resemble the following table.

  

  Sales Manager report: This report lists each sales manager and the total sales amount for all employees that report to the sales manager.

  Sales by Region report: This report lists the total sales amount by employee and by region. The report must include the following columns: EmployeeCode, MiddleName, LastName, RegionCode, and SalesAmount. If MiddleName is NULL, FirstName must be displayed. If both FirstName and MiddleName have null values, the world Unknown must be displayed/ If RegionCode is NULL, the word Unknown must be displayed.

  Report1: This report joins data from SalesSummary with the Employee table and other tables. You plan to create an object to support Report1. The object has the following requirements:

  be joinable with the SELECT statement that supplies data for the report

  can be used multiple times with the SELECT statement for the report

  be usable only with the SELECT statement for the report

  not be saved as a permanent object

  Report2: This report joins data from SalesSummary with the Employee table and other tables.

  You plan to create an object to support Report1. The object has the following requirements:

  be joinable with the SELECT statement that supplies data for the report

  can be used multiple times for this report and other reports

  accept parameters

  be saved as a permanent object

  Sales Hierarchy report: This report aggregates rows, creates subtotal rows, and super-aggregates rows over the SalesAmount column in a single result-set. The report uses SaleYear, SaleQuarter, and SaleMonth as a hierarchy. The result

  set must not contain a grand total or cross-tabulation aggregate rows.

  Current Price Stored Procedure: This stored procedure must return the unit price for a product when a product code is supplied. The unit price must include a dollar sign at the beginning. In addition, the unit price must contain a comma every

  three digits to the left of the decimal point, and must display two digits to the left of the decimal point. The stored procedure must not throw errors, even if the product code contains invalid data.

  End of Repeated Scenario

  You are creating the queries for Report1 and Report2.

  You need to create the objects necessary to support the queries.

  Which object should you use to join the SalesSummary table with the other tables that each report uses? To answer, drag the appropriate objects to the correct reports. each object 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.

  Select and Place:

  

  

  ---

  Box 1: common table expression (CTE)

  A common tableexpression (CTE) can be thought of as a temporary result set that is defined within the execution scope of a single SELECT, INSERT, UPDATE, DELETE, or CREATE VIEW statement. A CTE is similar to a derived table in

  that it is not stored as an object and lasts only for the duration of the query. Unlike a derived table, a CTE can be self-referencing and can be referenced multiple times in the same query.

  A CTE can be used to:

  Create a recursive query. For more information, see Recursive Queries Using CommonTable Expressions.

  Substitute for a view when the general use of a view is not required; that is, you do not have to store the definition in metadata.

  Enable grouping by a column that is derived from a scalar subselect, or a function that is either not deterministic or has external access.

  Reference the resulting table multiple times in the same statement.

  From Scenario: Report1: This report joins data from SalesSummary with the Employee table and other tables. You plan to create an object to support Report1. The object has the following requirements:

  be joinable with the SELECT statement that supplies data for the report

  can be used multiple times with the SELECT statement for the report

  be usable only with the SELECT statement for the report

  not be savedas a permanent object

  Box 2: view

  From scenario: Report2: This report joins data from SalesSummary with the Employee table and other tables.

  You plan to create an object to support Report1. The object has the following requirements:

  be joinable with theSELECT statement that supplies data for the report

  can be used multiple times for this report and other reports

  accept parameters

  be saved as a permanent object

  References: https://technet.microsoft.com/en-us/library/ms190766(v=sql.105).aspx

• Question 6:

  

  You are a developing a solution to manage employee training records. You have the following Transact-SQL statement:

  You need to create a stored procedure that returns the total number of participants for a specific course.

  How should you complete the procedure? 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.

  NOTE: Each correct selection is worth one point.

  Select and Place:

  

  

• Question 7:

  DRAG DROP

  You create a table to track sales persons by running the following Transact-SQL statement:

  

  You need to create a report that shows the sales people within each territory for each year. The report must display sales people in order by highest sales amount.

  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.

  NOTE: Each correct selection is worth one point.

  Select and Place:

  

  

  ---

  Ranking rows results in the partition of a result set being returned.

  PARTITION BY divides the query result into partition.

  ORDER BY defines the logical order of the rows.

  References: https://docs.microsoft.com/en-us/sql/t-sql/functions/rank-transact-sql?view=sql-server-2017

• 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 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
  B. No

  ---

  Reference: https://docs.microsoft.com/it-it/sql/t-sql/statements/insert-transact-sql?view=sql-server-2017

• 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

  

  Your company is developing a new social application that connects customers to each other based on the distance between their delivery locations.

  You need to write a query that returns the nearest customer.

  Solution: You run the following Transact-SQL statement:

  

  The variable @custID is set to a valid customer. Does the solution meet the goal?

  A. Yes
  B. No
  B. No

• Question 10:

  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 includes the tables shown in the exhibit (Click the Exhibit button.)

  

  You need to create a Transact-SQL query that returns the following information:

  

  the customer number

  

  the customer contact name

  

  the date the order was placed, with a name of DateofOrder

  

  a column named Salesperson, formatted with the employee first name, a space, and the employee last name

  

  orders for customers where the employee identifier equals 4

  The output must be sorted by order date, with the newest orders first. The solution must return only the most recent order for each customer.

  Solution: You run the following Transact-SQL statement:

  

  Does the solution meet the goal?

  A. Yes
  B. No
  B. No

  ---

  We should use a WHERE clause, not a HAVING clause. The HAVING clause would refer to aggregate data.