[Free] 2017(Sep) EnsurePass Pass4sure Microsoft 70-761 Dumps with VCE and PDF 31-40

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Querying Data with Transact-SQL (beta)

Question No: 31

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?

  1. the COALESCE function

  2. a view

  3. a table-valued function

  4. the TRY_PARSE function

  5. a stored procedure

  6. the ISNULL function

  7. a scalar function

  8. 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 quot;viewquot; of that data.

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

Question No: 32

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:

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You must insert the following data into the Customer table:

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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?

  1. Yes

  2. 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 No: 33 HOTSPOT

You have the following subqueries: Subquery1, Subquery2, and Subquery3.

You need to replace the three subqueries with named result sets or temporary tables. The following requirements must be met:

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Which replacement techniques should you use? To answer, select the appropriate options in the answer area.

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Answer:

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Explanation:

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Subquery1: common table expression (CTE)

A common table expression (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.

Subquery2: global temporary table

Global temporary tables are visible to any user and any connection after they are created, and are deleted when all users that are referencing the table disconnect from the instance of SQL Server.

Subquery3: local temporary table

Local temporary tables are visible only to their creators during the same connection to an instance of SQL Server as when the tables were first created or referenced. Local temporary tables are deleted after the user disconnects from the instance of SQL Server.

References:

https://technet.microsoft.com/en-us/library/ms190766(v=sql.105).aspx https://technet.microsoft.com/en-us/library/ms186986.aspx

Question No: 34 DRAG DROP

You have a database that stored information about servers and application errors. The database contains the following tables.

Servers

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Errors

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You are building a webpage that shows the three most common errors for each server. You need to return the data for the webpage.

How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct location. 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.

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Answer:

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Question No: 35 DRAG DROP

You create three tables by running the following Transact-SQL statements:

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For reporting purposes, you need to find the active user count for each role, and the total active user count. The result must be ordered by active user count of each role. You must use common table expressions (CTEs).

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.

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Answer:

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Question No: 36

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

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Application.Cities

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Sales.CustomerCategories

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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.

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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?

  1. Yes

  2. 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 No: 37

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 contains tables named Customer_CRMSystem and Customer_HRSystem. Both tables use the following structure:

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The tables include the following records: Customer_CRMSystem

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Customer_HRSystem

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Records that contain null values for CustomerCode can be uniquely identified by CustomerName.

You need to display a list of customers that do not appear in the Customer_HRSystem table.

Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

  6. Option F

  7. Option G

  8. Option H

Answer: D Explanation:

EXCEPT returns distinct rows from the left input query that aren’t output by the right input query.

References: https://msdn.microsoft.com/en-us/library/ms188055.aspx

Question No: 38 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 query a database that includes two tables: Project and Task. The Project table includes the following columns:

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When running an operation, you updated a column named EndTime for several records in the Project table, but updates to the corresponding task records in the Task table failed.

You need to synchronize the value of the EndTime column in the Task table with the value of the EndTime column in the project table. The solution must meet the following requirements:

  • If the EndTime column has a value, make no changes to the record.

  • If the value of the EndTime column is null and the corresponding project record is marked as completed, update the record with the project finish time.

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.

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Answer:

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Explanation:

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Box 1: UPDATE T SET T.EndTime = P.EndTime

We are updating the EndTime column in the Task table.

Box 2: FROM Task AS T

Where are updating the task table.

Box 3:INNER JOIN Project AS P on T.ProjectID = P.ProjectID

We join with the Project table (on the ProjectID columnID column).

Box 4: WHERE P.EndTime is NOT NULL AND T.EndTime is NULL

We select the columns in the Task Table where the EndTime column in the Project table has a value (NOT NULL), but where it is NULL in the Task Table.

References: https://msdn.microsoft.com/en-us/library/ms177523.aspx

Question No: 39 CORRECT TEXT

You have a database that contains the following tables.

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You need to create a query that lists the lowest-performing salespersons based on the current year-to-date sales period. The query must meet the following requirements:

  • Return a column named Fullname that includes the salesperson FirstName, a space, and then LastName.

  • Include the current year-to-date sales for each salesperson.

  • Display only data for the three salespersons with the lowest year-to-year sales values.

  • Exclude salespersons that have no value for TerritoryID.

    Construct the query using the following guidelines:

  • Use the first letter of a table name as the table alias.

  • Use two-part column names.

  • Do not surround object names with square brackets.

  • Do not use implicit joins.

  • Use only single quotes for literal text.

  • Use aliases only if required.

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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.

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Use the Check Syntax button to verify your work. Any syntax or spelling errors will be reported by line and character position.

Answer: Pending

Question No: 40

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You have a database that contains the following tables: Customer

CustomerAudit

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Where the value of the CustomerID column equals 3, you need to update the value of the CreditLimit column to 1000 for the customer. You must ensure that the change to the record in the Customer table is recorded on the CustomerAudit table.

Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: D Explanation:

The OUTPUT Clause returns information from, or expressions based on, each row affected by an INSERT, UPDATE, DELETE, or MERGE statement. These results can be returned to the processing application for use in such things as confirmation messages, archiving, and other such application requirements. The results can also be inserted into a table or table variable. Additionally, you can capture the results of an OUTPUT clause in a nested INSERT, UPDATE, DELETE, or MERGE statement, and insert those results into a target table or view.

Note: If the column modified by the .RITE clause is referenced in an OUTPUT clause, the complete value of the column, either the before image in deleted.column_name or the after image in inserted.column_name, is returned to the specified column in the table variable.

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Querying Data with Transact-SQL (beta)

Question No: 21 HOTSPOT

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:

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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.

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Answer:

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Explanation:

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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

Question No: 22 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 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:

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Details for the Application.Cities table are shown in the following table:

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Details for the Sales.CustomerCategories table are shown in the following table:

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You are creating a report to measure the impact of advertising efforts that were designed to attract new customers. The report must show the number of new customers per day for each customer category, but only if the number of new customers is greater than five.

You need to write the query to return data for the report.

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.

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Answer:

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Question No: 23 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.

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The following table describes the columns in Sales.Orders.

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The following table describes the columns in Sales.OrderLines.

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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.

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Answer:

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Explanation:

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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

Question No: 24 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 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:

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Details for the Application.Cities table are shown in the following table:

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Details for the Sales.CustomerCategories table are shown in the following table:

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The marketing department is performing an analysis of how discount affect credit limits. They need to know the average credit limit per standard discount percentage for customers whose standard discount percentage is between zero and four.

You need to create a query that returns the data for the analysis.

How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact-SQL segments 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.

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Answer:

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Explanation:

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Box 1: 0, 1, 2, 3, 4

Pivot example:

– Pivot table with one row and five columns

SELECT #39;AverageCost#39; AS Cost_Sorted_By_Production_Days, [0], [1], [2], [3], [4]

FROM

(SELECT DaysToManufacture, StandardCost FROM Production.Product) AS SourceTable PIVOT

(

AVG(StandardCost)

FOR DaysToManufacture IN ([0], [1], [2], [3], [4])

) AS PivotTable; Box 2: [CreditLimit]

Box 3: PIVOT

You can use the PIVOT and UNPIVOT relational operators to change a table-valued expression into another table. PIVOT rotates a table-valued expression by turning the unique values from one column in the expression into multiple columns in the output, and performs aggregations where they are required on any remaining column values that are wanted in the final output.

Box 4: 0, 1, 2, 3, 4

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 expression[ ,… n ]

is a list of expressions to test for a match. All expressions must be of the same type as test_expression.

References: https://technet.microsoft.com/en-us/library/ms177410(v=sql.105).aspx

Question No: 25

You have a database that stored information about servers and application errors. The database contains the following tables.

Servers

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Errors

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You need to return all error log messages and the server where the error occurs most often.

Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: C

Question No: 26

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:

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You have the following stored procedure:

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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:

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Does the solution meet the goal?

  1. Yes

  2. No

Answer: B Explanation:

A transaction is correctly defined for the INSERT INTO ..VALUES statement, and if there is an error in the transaction it will be caught ant he transaction will be rolled back. However, error number 51000 will not be returned, as it is only used in an IF @ERROR = 51000 statement.

Note: @@TRANCOUNT returns the number of BEGIN TRANSACTION statements that have occurred on the current connection.

References: https://msdn.microsoft.com/en-us/library/ms187967.aspx

Question No: 27 HOTSPOT

You have the following stored procedure:

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You run the following Transact-SQL statements:

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What is the result of each Transact-SQL statement? To answer, select the appropriate options in the answer area.

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Answer:

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Explanation:

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Box 1: All transactions are rolled back.

The first IF-statement, IF @CODE = #39;C2323#39; AND @ApplicationID = 1, will be true, an error will be raised, the error will be caught in the CATCH block, and the only transaction that has been started will be rolled back.

Box 2: Only Log1, Log2, and Log3 tables are updated.

The second IF-statement, IF @Code = #39;C2323#39;, will be true, so the second transaction will be rolled back, but log1, log2, and log3 was updated before the second transaction.

Question No: 28

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 Products that contains information about the products that your company sells. The table contains many columns that do not always contain values.

You need to implement an ANSI standard method to convert the NULL values in the query output to the phrase “Not Applicable”.

What should you implement?

  1. the COALESCE function

  2. a view

  3. a table-valued function

  4. the TRY_PARSE function

  5. a stored procedure

  6. the ISNULL function

  7. a scalar function

  8. the TRY_CONVERT function

Answer: F Explanation:

The ISNULL function replaces NULL with the specified replacement value. References: https://msdn.microsoft.com/en-us/library/ms184325.aspx

Question No: 29

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:

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You have the following stored procedure:

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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:

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Does the solution meet the goal?

  1. Yes

  2. No

Answer: B Explanation:

With X_ABORT ON the INSERT INTO statement and the transaction will be rolled back when an error is raised, it would then not be possible to ROLLBACK it again in the IF XACT_STATE() lt;gt; O ROLLACK TRANSACTION statmen.

Note: A transaction is correctly defined for the INSERT INTO ..VALUES statement, and if there is an error in the transaction it will be caught ant he transaction will be rolled back, finally an error 51000 will be raised.

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

XACT_STATE is a scalar function that reports the user transaction state of a current running request. XACT_STATE indicates whether the request has an active user transaction, and whether the transaction is capable of being committed.

The states of XACT_STATE are:

0 There is no active user transaction for the current request.

  1. The current request has an active user transaction. The request can perform any actions, including writing data and committing the transaction.

  2. The current request has an active user transaction, but an error has occurred that has caused the transaction to be classified as an uncommittable transaction.

References:

https://msdn.microsoft.com/en-us/library/ms188792.aspx https://msdn.microsoft.com/en-us/library/ms189797.aspx

Question No: 30 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 query a database that includes two tables: Project and Task. The Project table includes the following columns:

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Task level is defined using the following rules:

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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.

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Answer:

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Explanation:

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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 gt;0.

References:

https://msdn.microsoft.com/en-us/library/ms180026.aspx

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Querying Data with Transact-SQL (beta)

Question No: 11

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:

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You are developing a report that aggregates customer data only for the year 2014. The report requires that the data be denormalized.

You need to return the data for the report. Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

  6. Option F

  7. Option G

  8. Option H

Answer: G

Question No: 12 CORRECT TEXT

You have a table named Cities that has the following two columns: CityID and CityName. The CityID column uses the int data type, and CityName uses nvarchar(max).

You have a table named RawSurvey. Each row includes an identifier for a question and the number of persons that responded to that question from each of four cities. The table contains the following representative data:

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A reporting table named SurveyReport has the following columns: CityID, QuestionID, and RawCount, where RawCount is the value from the RawSurvey table.

You need to write a Transact-SQL query to meet the following requirements:

  • Retrieve data from the RawSurvey table in the format of the SurveyReport table.

  • The CityID must contain the CityID of the city that was surveyed.

  • The order of cities in all SELECT queries must match the order in the RawSurvey table.

  • The order of cities in all IN statements must match the order in the RawSurvey table. Construct the query using the following guidelines:

  • Use one-part names to reference tables and columns, except where not possible.

  • ALL SELECT statements must specify columns.

  • Do not use column or table aliases, except those provided.

  • Do not surround object names with square brackets.

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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.

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Use the Check Syntax button to verify your work. Any syntax or spelling errors will be reported by line and character position.

Answer: UNPIVOT

Explanation:

UNPIVOT must be used to rotate columns of the Rawsurvey table into column values. References: https://technet.microsoft.com/en-us/library/ms177410(v=sql.105).aspx

Question No: 13

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:

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You plan to run the following query to update tasks that are not yet started:

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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.

  1. B.

  2. C.

  3. 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 No: 14

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

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Application.Cities

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Sales.CustomerCategories

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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:

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Does the solution meet the goal?

  1. Yes

  2. No

Answer: B Explanation:

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

Question No: 15

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:

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Details for the Application.Cities table are shown in the following table:

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Details for the Sales.CustomerCategories table are shown in the following table:

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You need to create a query that meets the following requirements:

  • For customers that are not on a credit hold, return the CustomerID and the latest recorded population for the delivery city that is associated with the customer.

  • For customers that are on a credit hold, return the CustomerID and the latest recorded population for the postal city that is associated with the customer.

Which two Transact-SQL queries will achieve the goal? Each correct answer presents a complete solution.

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: A Explanation:

Using Cross Joins

A cross join that does not have a WHERE clause produces the Cartesian product of the tables involved in the join. The size of a Cartesian product result set is the number of rows in the first table multiplied by the number of rows in the second table.

However, if a WHERE clause is added, the cross join behaves as an inner join.

B: You can use the IIF in the ON-statement.

IIF returns one of two values, depending on whether the Boolean expression evaluates to true or false in SQL Server.

References:

https://technet.microsoft.com/en-us/library/ms190690(v=sql.105).aspx https://msdn.microsoft.com/en-us/library/hh213574.aspx

Question No: 16 DRAG DROP

You need to create a stored procedure to update a table named Sales.Customers. The structure of the table is shown in the exhibit. (Click the exhibit button.)

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The stored procedure must meet the following requirements:

  • Accept two input parameters.

  • Update the company name if the customer exists.

  • Return a custom error message if the customer does not exist.

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.

NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.

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Answer:

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Question No: 17 CORRECT TEXT

You create a table named Sales.Orders by running the following Transact-SQL statement:

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You need to write a query that meets the following requirements:

  • removes orders from the table that were placed before January 1, 2012

  • uses the date format of YYYYMMDD

  • ensures that the order has been shipped before deleting the record

    Construct the query using the following guidelines:

  • use one-part column names and two-part table names

  • do not use functions

  • do not surround object names with square brackets

  • do not use variables

  • do not use aliases for column names and table names

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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.

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Use the Check Syntax button to verify your work. Any syntax or spelling errors will be reported by line and character position.

Answer: Pending

Question No: 18

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:

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You must insert the following data into the Customer table:

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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?

  1. Yes

  2. No

Answer: B Explanation:

As there are two separate INSERT INTO statements we cannot ensure that both or neither records is inserted.

Question No: 19

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:

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You need to audit all customer data.

Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

  6. Option F

  7. Option G

  8. Option G

Answer: B Explanation:

The FOR SYSTEM_TIME ALL clause returns all the row versions from both the Temporal and History table.

Note: A system-versioned temporal table defined through is a new type of user table in SQL Server 2016, here defined on the last line WITH (SYSTEM_VERSIONING = ON…, is designed to keep a full history of data changes and allow easy point in time analysis.

To query temporal data, the SELECT statement FROMlt;tablegt; clause has a new clause FOR SYSTEM_TIME with five temporal-specific sub-clauses to query data across the current and history tables.

References: https://msdn.microsoft.com/en-us/library/dn935015.aspx

Question No: 20 HOTSPOT

You run the following Transact-SQL statement:

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You need to ensure that you can insert data into the table.

What are the characteristics of the data? To answer, select the appropriate options in the answer area.

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Answer:

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Explanation:

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Box 1: custid

IDENTITY indicates that the new column is an identity column. When a new row is added to the table, the Database Engine provides a unique, incremental value for the column.

Identity columns are typically used with PRIMARY KEY constraints to serve as the unique row identifier for the table.

Box 2: postalcode

postalcode is declared as NOT NULL, which means that a value must be inserted.

Box 3: region

Fax is also a correct answer. Both these two columns are declared as NULL, which means that data entry is optional.

References: https://msdn.microsoft.com/en-us/library/ms174979.aspx

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Querying Data with Transact-SQL (beta)

Question No: 1

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 named Customers. Data stored in the table must be exchanged between web pages and web servers by using AJAX calls that use REST endpoint.

You need to return all customer information by using a data exchange format that is text- based and lightweight.

Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

  6. Option F

  7. Option G

  8. Option H

Answer: C Explanation:

JSON can be used to pass AJAX updates between the client and the server.

Export data from SQL Server as JSON, or format query results as JSON, by adding the FOR JSON clause to a SELECT statement.

When you use the FOR JSON clause, you can specify the structure of the output explicitly, or let the structure of the SELECT statement determine the output.

References: https://msdn.microsoft.com/en-us/library/dn921882.aspx

Question No: 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 create a table named Customer by running the following Transact-SQL statement:

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You must insert the following data into the Customer table:

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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?

  1. Yes

  2. No

Answer: B Explanation:

As there are two separate INSERT INTO statements we cannot ensure that both or neither records is inserted.

Question No: 3

You have a database named MyDb. You run the following Transact-SQL statements:

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A value of 1 in the IsActive column indicates that a user is active.

You need to create a count for active users in each role. If a role has no active users. you must display a zero as the active users count.

Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: C

Question No: 4 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 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:

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Details for the Application.Cities table are shown in the following table:

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Details for the Sales.CustomerCategories table are shown in the following table:

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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:

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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.

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Answer:

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Explanation:

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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).

Question No: 5 HOTSPOT

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.

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The following table describes the columns in Sales.Orders.

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The following table describes the columns in Sales.OrderLines.

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You need to create a database object that calculates the total price of an order including the sales tax. The database object must meet the following requirements:

  • Reduce the compilation cost of Transact-SQL code by caching the plans and reusing them for repeated execution.

  • Return a value.

  • Be callable from a SELECT statement.

How should you complete the Transact-SQL statements? To answer, select the appropriate Transact-SQL segments in the answer area.

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Answer:

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Explanation:

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Box 1: FUNCTION

To be able to return a value we should use a scalar function.

CREATE FUNCTION creates a user-defined function in SQL Server and Azure SQL Database. The return value can either be a scalar (single) value or a table.

Box 2: RETURNS decimal(18,2)

Use the same data format as used in the UnitPrice column.

Box 3: BEGIN

Transact-SQL Scalar Function Syntax include the BEGIN ..END construct.

CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name

( [ { @parameter_name [ AS ][ type_schema_name. ] parameter_data_type [ = default ] [ READONLY ] }

[ ,…n ]

]

)

RETURNS return_data_type

[ WITH lt;function_optiongt; [ ,…n ] ] [ AS ]

BEGIN

function_body

RETURN scalar_expression END

[ ; ]

Box 4: @OrderPrice * @CalculatedTaxRate Calculate the price including tax.

Box 5: END

Transact-SQL Scalar Function Syntax include the BEGIN ..END construct. References: https://msdn.microsoft.com/en-us/library/ms186755.aspx

Question No: 6

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:

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You need to return normalized data for all customers that were added in the year 2014. Which Transact-SQL statement should you run?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D.

  5. Option E.

  6. Option F.

  7. Option G.

  8. Option H.

Answer: G

Explanation:

The following query searches for row versions for Employee row with EmployeeID = 1000 that were active at least for a portion of period between 1st January of 2014 and 1st January 2015 (including the upper boundary):

SELECT * FROM Employee FOR SYSTEM_TIME

BETWEEN #39;2014-01-01 00:00:00.0000000#39; AND #39;2015-01-01 00:00:00.0000000#39;

WHERE EmployeeID = 1000 ORDER BY ValidFrom;

References: https://msdn.microsoft.com/en-us/library/dn935015.aspx

Question No: 7

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?

  1. the COALESCE function

  2. a view

  3. a table-valued function

  4. the TRY_PARSE function

  5. a stored procedure

  6. the ISNULL function

  7. a scalar function

  8. 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

Question No: 8 CORRECT TEXT

You have a database that contains the following tables.

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You need to create a query that lists all complaints from the Complaints table, and the name of the person handling the complaints if a person is assigned. The ComplaintID must be displayed first, followed by the person name.

Construct the query using the following guidelines:

  • Use two-part column names.

  • Use one-part table names.

  • Do not use aliases for column names or table names.

  • Do not use Transact-SQL functions.

  • Do not use implicit joins.

  • 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.

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Use the Check Syntax button to verify your work. Any syntax or spelling errors will be reported by line and character position.

Answer: Pending

Question No: 9 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.

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The following table describes the columns in Sales.Orders.

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The following table describes the columns in Sales.OrderLines.

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You need to create a function that calculates the highest tax rate charged for an item in a specific order.

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.

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Answer:

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Explanation:

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Box 1: CREATE FUNCTION…@OrderID

Include definition for the …@OrderID parameter.

Box 2: RETURNS decimal(18,2)

The function is defined to return a scalar value.

Box 3: AS BEGIN …

Declare the local variables of the function.

Box 4: SET @CalculatedTaxRate = (.. Calculate the tax rate.

Box 5: RETURN @CalculatedRate END Return a scalar value.

References: https://msdn.microsoft.com/en-us/library/ms186755.aspx

Question No: 10 DRAG DROP

You have a table named HR.Employees as shown in the exhibit. (Click the exhibit button.)

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You need to write a query that will change the value of the job title column to Customer Representative for any employee who lives in Seattle and has a job title of Sales Representative. If the employee does not have a manager defined, you must not change the title.

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.

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Answer:

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Explanation:

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References: https://msdn.microsoft.com/en-us/library/ms177523.aspx

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