You use Microsoft SQL Server 2012 to develop a database application.
You create a stored procedure named dbo.ModifyData that can modify rows.
You need to ensure that when the transaction fails, dbo.ModifyData meets the following requirements:
Does not return an error
Closes all opened transactions
Which Transact-SQL statement should you use?

Your application contains a stored procedure for each country. Each stored procedure accepts an employee identification number through the @EmpID parameter.
You plan to build a single process for each employee that will execute the stored procedure based on the country of residence.
Which approach should you use?

Your database contains a table named SalesOrders. The table includes a DATETIME column named OrderTime that stores the date and time each order is placed.
There is a non-clustered index on the OrderTime column.
The business team wants a report that displays the total number of orders placed on the current day.
You need to write a query that will return the correct results in the most efficient manner.
Which Transact-SQL query should you use?

You administer a Microsoft SQL Server database named Sales. The database is 3 terabytes in size. The Sales database is configured as shown in the following
table.

You discover that Sales_2.ndf is corrupt. You need to recover the corrupted data in the minimum amount of time. What should you do?

You administer a Microsoft SQL Server 2012 server. You plan to deploy new features to an application. You need to evaluate existing and potential clustered and
non-clustered indexes that will improve performance.
What should you do?

You administer a Microsoft SQL Server 2012 database named ContosoDb. The database contains a table named Suppliers and a column named IsActive in the
Purchases schema. You create a new user named ContosoUser in ContosoDb. ContosoUser has no permissions to the Suppliers table. You need to ensure that
ContosoUser can delete rows that are not active from Suppliers. You also need to grant ContosoUser only the minimum required permissions. Which Transact-SQL
statement should you use?

You use Microsoft SQL Server 2012 to develop a database application.
You need to implement a computed column that references a lookup table by using an INNER JOIN against another table.
What should you do?

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?