You use a Microsoft SQL Server database that contains a table.

The table has records of web requests as shown in the exhibit. (Click the Exhibit button.)

Your network has three web servers that have the following IP addresses:

– 10.0.0.1

– 10.0.0.2

– 10.0.0.3

You need to create a query that displays the following information:

– The number of requests for each web page (UriStem) grouped by the web server (ServerIP) that served the request

– A column for each server

Which Transact-SQL query should you use?

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DRAG DROP

You develop a Microsoft SQL Server database for a sales ordering application.

You want to create a report that displays the increase of order quantities over the previous year for each product.

You need to write a query that displays:

– Product name,

– Year of sales order,

– Sales order quantity, and

– Increase of order quantity over the previous year.

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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Correct Answer:

Explanation:

Box 1: FROM ..

Box 2: LAG (not LEAD)

Lag accesses data from a previous row in the same result set without the use of a self-join starting

with SQL Server 2012 (11.x). LAG provides access to a row at a given physical offset that comes before the current row. Use this analytic function in a SELECT statement to compare values in the current row with values in a previous row.

Not lead: Lead accesses data from a subsequent row in the same result set without the use of a self-join starting with SQL Server 2012 (11.x). LEAD provides access to a row at a given physical offset that follows the current row.

Box 3: GROY BY PRO.NAME, YEAR (OrderDate)

References: https://docs.microsoft.com/en-us/sql/t-sql/functions/lag-transact-sql?view=sql-server­2017

You develop a Microsoft SQL Server database that contains a table named Employee, defined as follows:

You need to create a view that contains two computed columns representing the month and the year of the [HireDate] of each Employee.

Which function should you use?

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You administer a Microsoft SQL Server database named ContosoDb.

The database has the following schema collection:

The database has a table named ReceivedPurchaseOrders that includes an XML column named PurchaseOrder by using the above schema.

You need to set the requiresApproval attribute of the XML documents to false if they contain more than 50 items.

Which Transact-SQL query should you run?

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DRAG DROP

Your Microsoft SQL Server database contains tables as shown below.

You have tables that were created by running the following Transact-SQL statements:

The Product table contains 10,000 records. The maximum ProductID is 11,000.

There are 12 rows in the Category table. The maximum CategoryID is 12.

The Product table contains at least one product in every category.

Data in the tables was accidently modified. To correct this, you need to make some updates directly to the tables. You issue several statements.

Which result or results will you obtain for each Transact-SQL statement? To answer, drag the appropriate results to the correct Transact-SQL statements. Each result 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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Correct Answer:

Explanation:

Box 1: The SET IDENTITY_INSERT command allows explicit values to be inserted into the identity column of a table.

Box 2: The Product table contains at least one product in every category.

Box 3:

Box 4: Bit is a data type that can take a value of 1, 0, or NULL.

References: https://docs.microsoft.com/en-us/sql/t-sql/data-types/bit-transact-sql?view=sql-server-2017 https://docs.microsoft.com/en-us/sql/t-sql/statements/set-identity-insert-transact-sql?view=sql­server-2017

DRAG DROP

You develop an application that uses data from a Microsoft SQL Server database.

Your application experiences blocking problems.

You need to enable row versioning and you want connections to have row versioning enabled by default.

How should you complete the Transact-SQL statement? To answer, drag the appropriate command to the correct positions. Each command 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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Correct Answer:

Explanation:

You can use a row versioning-based isolation level.

Set READ_COMMITTED_SNAPSHOT database option ON to enable read-committed transactions to use row versioning, and use snapshot isolation.

References: https://docs.microsoft.com/en-us/sql/relational-databases/sql-server-transaction­locking-and-row-versioning-guide?view=sql-server-2017

DRAG DROP

You are a developer for a Microsoft SQL Server database. You need to write a stored procedure that performs several operations in the most efficient way possible.

Which operator or operators should you use? To answer, drag the appropriate operators to the correct operations. Each operator 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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Correct Answer:

Explanation:

Box 1: UNION ALL

UNION combines the results of two or more queries into a single result set that includes all the rows that belong to all queries in the union.

UNION ALL Incorporates all rows into the results. This includes duplicates. If ALL is not specified, duplicate rows are removed.

Box 2: INTERSECT

INTERSECT returns distinct rows that are output by both the left and right input queries operator.

Box 3: INNER JOIN

The INNER JOIN keyword selects records that have matching values in both tables.

Box 4: MERGE

Merge performs insert, update, or delete operations on a target table based on the results of a join with a source table. For example, you can synchronize two tables by inserting, updating, or deleting rows in one table based on differences found in the other table.

Box 5: FULL OUTER JOIN

The FULL OUTER JOIN keyword return all records when there is a match in either left (table1) or right (table2) table records.

Note: FULL OUTER JOIN can potentially return very large result-sets!

You develop a database application for Microsoft SQL Server and Microsoft Azure SQL Database.

You need to raise an exception and transfer execution to a CATCH block.

You need to ensure that the exception returns output in the following format:

Msg 51000, Level 16, State 1, Line 1

The record does not exist.

Which Transact-SQL statement should you run?

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DRAG DROP

You develop a database application for Microsoft SQL Server 2012 and Microsoft Azure SQL Database.

You create a table named Purchasing.vVendorWithAddresses as shown in the following table.

You write the following Transact-SQL (Line numbers are included for reference only.) 01 CREATE PROCEDURE

You need to add Transact-SQL statements at line 08 to ensure that GetVendorInStateNeighbors returns the names of vendors that are located in all states where the vendor specified in the @vendorname parameter has a location.

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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Correct Answer:

Explanation:

The IN statement determines whether a specified value matches any value in a subquery or a list.

Incorrect: The EXISTS command specifies a subquery to test for the existence of rows.

References: https://docs.microsoft.com/en-us/sql/t-sql/language-elements/in-transact­sql?view=sql-server-2017

A local bank uses a SQL Server database to manage accounts. You are developing a stored procedure that contains multiple Transact-SQL INSERT statements. The stored procedure must use transaction management to handle errors. You need to ensure that the stored procedure rolls back the entire transaction if a run-time occurs.

Which Transact-SQL statement should you add to the stored procedure?

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