[2021-New] Microsoft 70-761 Dumps With Update Exam Questions (11-20)

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Q1. 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.

You are developing a database to track customer orders. The database contains the following tables: Sales.Customers, Sales.Orders, and Sales.OrderLines. The following table describes the columns in Sales.Customers.

The following table describes the columns in Sales.Orders.

The following table describes the columns in Sales.OrderLines.

You need to create a stored procedure that inserts data into the Customers table. The stored procedure must meet the following requirements:

- Data changes occur as a single unit of work.

- Data modifications that are successful are committed and a value of 0 is returned.

- Data modifications that are unsuccessful are rolled back. The exception severity level is set to 16 and a value of -1 is returned.

- The stored procedure uses a built-it scalar function to evaluate the current condition of data modifications.

- The entire unit of work is terminated and rolled back if a run-time error occurs during execution of the stored procedure.

How should complete the stored procedure definition? To answer, drag the appropriate Transact-SQL segments to the correct targets. 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.

Answer:

Explanation:

Explanation

Box 1: XACT_ABORT

XACT_ABORT specifies whether SQL Server automatically rolls back the current transaction when a Transact-SQL statement raises a run-time error.

When SET XACT_ABORT is ON, if a Transact-SQL statement raises a run-time error, the entire transaction is terminated and rolled back.

Box 2: COMMIT

Commit the transaction. Box 3: XACT_STATE

Box 4: ROLLBACK

Rollback the transaction

Box 5: THROW

THROW raises an exception and the severity is set to 16.

Requirement: Data modifications that are unsuccessful are rolled back. The exception severity level is set to 16 and a value of -1 is returned.

References:

https://msdn.microsoft.com/en-us/library/ms188792.aspx https://msdn.microsoft.com/en-us/library/ee677615.aspx

Q2. DRAG DROP

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 creating a report to show when the first customer account was opened in each city. The report contains a line chart with the following characteristics:

- The chart contains a data point for each city, with lines connecting the points.

- The X axis contains the position that the city occupies relative to other cities.

- The Y axis contains the date that the first account in any city was opened. An example chart is shown below for five cities:

During a sales promotion, customers from various cities open new accounts on the same date.

You need to write a query that returns the data for the chart.

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.

Answer:

Explanation:

Box 1: RANK() OVER

RANK returns the rank of each row within the partition of a result set. The rank of a row is one plus the number of ranks that come before the row in question.

ROW_NUMBER and RANK are similar. ROW_NUMBER numbers all rows sequentially (for example 1, 2, 3, 4, 5).

Q3. DRAG DROP

You have a database that includes the following tables:

You need to create a list of all customer IDs and the date of the last order that each customer placed. If the customer has not placed any orders, you must return the date January 1, 1900. The column names must be CustomerID and LastOrderDate.

Which four 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.

Answer:

Explanation:

Box 1: SELECT..COALESCE…

The COALESCE function evaluates the arguments in order and returns the current value of the first expression that initially does not evaluate to NULL.

Box 2: ..LEFT OUTER JOIN..

The LEFT JOIN (LEFT OUTER JOIN) keyword returns all rows from the left table (table1), with the matching rows in the right table (table2). The result is NULL in the right side when there is no match. A customer might have no orders so the right table must be allowed have a NULL value.

Box 3: ON c.custid = o.custid

We JOIN on the custID column, which is available in both tables. Box 4: GROUP BY c.custid

References:

https://technet.microsoft.com/en-us/library/ms189499(v=sql.110).aspx http://www.w3schools.com/sql/sql_join_left.asp

Q4. HOTSPOT

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

Q5. 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 only to that question.

You have a table named AuditTrail that tracks modifications to data in other tables. The AuditTrail table is updated by many processes. Data input into AuditTrail may contain improperly formatted date time values. You implement a process that retrieves data from the various columns in AuditTrail, but sometimes the process throws an error when it is unable to convert the data into valid date time values.

You need to convert the data into a valid date time value using the en-US format culture code. If the conversion fails, a null value must be returned in the column output. The conversion process must not throw an error.

What should you implement?

A. the COALESCE function

B. a view

C. a table-valued function

D. the TRY_PARSE function

E. a stored procedure

F. the ISNULL function

G. a scalar function

H. the TRY_CONVERT function

Answer: H

Explanation:

A TRY_CONVERT function returns a value cast to the specified data type if the cast succeeds; otherwise, returns null.

References: https://msdn.microsoft.com/en-us/library/hh230993.aspx

Q6. 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 only to that question.

You have a database that stores sales and order information.

Users must be able to extract information from the tables on an ad hoc basis. They must also be able to reference the extracted information as a single table.

You need to implement a solution that allows users to retrieve the data required, based on variables defined at the time of the query.

What should you implement?

A. the COALESCE function

B. a view

C. a table-valued function

D. the TRY_PARSE function

E. a stored procedure

F. the ISNULL function

G. a scalar function

H. the TRY_CONVERT function

Answer: C

Explanation:

User-defined functions that return a table data type can be powerful alternatives to views. These functions are referred to as table-valued functions. A table-valued user-defined function can be used where table or view expressions are allowed in Transact-SQL

queries. While views are limited to a single SELECT statement, user-defined functions can contain additional statements that allow more powerful logic than is possible in views.

A table-valued user-defined function can also replace stored procedures that return a single result set.

References: https://technet.microsoft.com/en-us/library/ms191165(v=sql.105).aspx

Q7. 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 Products by running the following Transact-SQL statement:

You have the following stored procedure:

You need to modify the stored procedure to meet the following new requirements:

- Insert product records as a single unit of work.

- Return error number 51000 when a product fails to insert into the database.

- If a product record insert operation fails, the product information must not be permanently written to the database.

Solution: You run the following Transact-SQL statement:

Does the solution meet the goal?

A. Yes

B. No

Answer: A

Explanation:

If the INSERT INTO statement raises an error, the statement will be caught and an error 51000 will be thrown. In this case no records will have been inserted.

Note:

You can implement error handling for the INSERT statement by specifying the statement in a TRY…CATCH construct.

If an INSERT statement violates a constraint or rule, or if it has a value incompatible with

the data type of the column, the statement fails and an error message is returned. References: https://msdn.microsoft.com/en-us/library/ms174335.aspx

Q8. 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 only to that question.

You have a database that is denormalized. Users make frequent changes to data in a primary table.

You need to ensure that users cannot change the tables directly, and that changes made to the primary table also update any related tables.

What should you implement?

A. the COALESCE function

B. a view

C. a table-valued function

D. the TRY_PARSE function

E. a stored procedure

F. the ISNULL function

G. a scalar function

H. the TRY_CONVERT function

Answer: B

Explanation:

Using an Indexed View would allow you to keep your base data in properly normalized tables and maintain data-integrity while giving you the denormalized "view" of that data.

References: http://stackoverflow.com/questions/4789091/updating-redundant-denormalized-data-automatically-in-sql-server

Q9. 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 only to that question.

You create a table by running the following Transact-SQL statement:

You are developing a report that displays customer information. The report must contain a grand total column.

You need to write a query that returns the data for the report. Which Transact-SQL statement should you run?

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

F. Option F

G. Option G

H. Option H

Answer: E

Explanation:

Calculate aggregate column through AVG function and GROUP BY clause.

Q10. DRAG DROP

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.

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