Microsoft Querying Microsoft SQL Server 2012 Set 2

You develop a Microsoft SQL Server database. You create a view from the Orders and OrderDetails tables by using the following definition. You need to ensure that users are able to modify data by using the view. What should you do?

Your database contains tables named Products and ProductsPriceLog. The Products table contains columns named ProductCode and Price. The ProductsPriceLog table contains columns named ProductCode, OldPrice, and NewPrice. The ProductsPriceLog table stores the previous price in the OldPrice column and the new price in the NewPrice column. You need to increase the values in the Price column of all products in the Products table by 5 percent. You also need to log the changes to the ProductsPriceLog table. 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 use Microsoft SQL Server to write code for a transaction that contains several statements. There is high contention between readers and writers on several tables used by your transaction. You need to minimize the use of the tempdb space. You also need to prevent reading queries from blocking writing queries. Which isolation level should you use?

You create a table that has three columns named StudentCode, SubjectCode, and Marks. The Marks column records grades for students expressed as a percentage. The table has marks obtained by 50 students for various subjects. You need to retrieve the students who scored the highest marks for each subject along with the marks. Which Transact-SQL query should you use?

You use a contained database named ContosoDb within a domain. You need to create a user who can log on to the ContosoDb database. You also need to ensure that you can port the database to different database servers within the domain without additional user account configurations. Which type of user should you create?

You administer several Microsoft SQL Server database servers. Merge replication has been configured for an application that is distributed across offices throughout a wide area network (WAN). Many of the tables involved in replication use the XML and varchar (max) data types. Occasionally, merge replication fails due to timeout errors. You need to reduce the occurrence of these timeout errors. What should you do?

You administer a Microsoft SQL Server database that has Trustworthy set to On. You create a stored procedure that returns database-level information from Dynamic Management Views. You grant User1 access to execute the stored procedure. You need to ensure that the stored procedure returns the required information when User1 executes the stored procedure. You need to achieve this goal by granting the minimum permissions required. What should you do? (Each correct answer presents a complete solution. Choose all that apply.)

You develop a Microsoft SQL Server database that contains tables named Customers and Orders. The tables are related by a column named CustomerID. You need to create a query that meets the following requirements: It must return the CustomerName and the OrderDate for any orders that a customer has placed. Results must not include customers who have not placed any orders. Which Transact-SQL query should you use?

You develop a Microsoft SQL Server database. You need to create a batch process that meets the following requirements: Status information must be logged to a status table. If the status table does not exist at the beginning of the batch, it must be created. Which object should you use?