You administer a Microsoft SQL Server 2012 database named ContosoDb. Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.

Which Transact-SQL query should you use?

You are developing a database application by using Microsoft SQL Server 2012.
An application that uses a database begins to run slowly.
Your investigation shows the root cause is a query against a read-only table that has a clustered index.

The query returns the following six columns:
One column in its WHERE clause contained in a non-clustered index
Four additional columns
One COUNT (*) column based on a grouping of the four additional columns
You need to optimize the statement.
What should you do?

You develop a Microsoft SQL Server 2012 database. The database is used by two web applications that access a table named Products.
You want to create an object that will prevent the applications from accessing the table directly while still providing access to the required data.
You need to ensure that the following requirements are met:
Future modifications to the table definition will not affect the applications’ ability to access data.
The new object can accommodate data retrieval and data modification.
You need to achieve this goal by using the minimum amount of changes to the applications.
What should you create for each application?

You are writing a set of queries against a FILESTREAM-enabled database.
You create a stored procedure that will update multiple tables within a transaction.
You need to ensure that if the stored procedure raises a runtime error, the entire transaction is terminated and rolled back.
Which Transact-SQL statement should you include at the beginning of the stored procedure?

You use Microsoft SQL Server 2012 to develop a database application.
Your application sends data to an NVARCHAR(MAX) variable named @var.
You need to write a Transact-SQL statement that will find out the success of a cast to a decimal (36,9).
Which code segment should you use?

A table named Profits stores the total profit made each year within a territory. The Profits table has columns named Territory, Year, and Profit. You need to create a
report that displays the profits made by each territory for each year and its preceding year. Which Transact-SQL query should you use?

You use Microsoft SQL Server 2012 to create a stored procedure as shown in the following code segment. (Line numbers are included for reference only.)

The procedure can be called within other transactions.
You need to ensure that when the DELETE statement from the HumanResourcesJobCandidate table succeeds, the modification is retained even if the insert into
the Audit.Log table fails.
Which code segment should you add to line 14?

You administer a Microsoft SQL Server 2012 database. The database contains a Product table created by using the following definition:
You need to ensure that the minimum amount of disk space is used to store the data in the Product table.

What should you do?

You administer a Microsoft SQL Server 2012 database that has multiple tables in the Sales schema. Some users must be prevented from deleting records in any of
the tables in the Sales schema. You need to manage users who are prevented from deleting records in the Sales schema.
You need to achieve this goal by using the minimum amount of administrative effort. What should you do?

You develop three Microsoft SQL Server 2012 databases named Database1, Database2, and Database3.
You have permissions on both Database1 and Database2. You plan to write and deploy a stored procedure named dbo.usp_InsertEvent in Database3.
dbo.usp_InsertEvent must execute other stored procedures in the other databases.
You need to ensure that callers that do not have permissions on Database1 or Database2 can execute the stored procedure.
Which Transact-SQL statement should you use?