You are creating an online catalog application that will display product information on the company Web site. The product data is stored in a SQL Server 2005 database. The data is stored as relational data but must be passed to the application as an XML document by using FOR XML. You test your application and notice that not all of the items matching your query appear in the XML document. Only those products that have values for all elements in the schema appear.  
You need to modify your Transact-SQL statement so that all products matching your query appear in the XML document.
What should you do？（）

You are creating a stored procedure that will delete data from the Contact table in a SQL Server 2005 database. The stored procedure includes the following Transact-SQL statement to handle any errors that occur.
BEGIN TRY  
BEGIN TRANSACTION  
DELETE FROM Person.Contact
WHERE ContactID = @ContactID
COMMIT TRANSACTION
END TRY  
BEGIN CATCH  
DECLARE @ErrorMessage nvarchar（2000） DECLARE @ErrorSeverity int DECLARE @ErrorState int SELECT @ErrorMessage = ERROR MESSAGE（），@ErrorSeverity=ERROR SEVERITY（），@ErrorState = ERROR STATE（） RAISERROR （@ErrorMessage， @ErrorSeverity， @ErrorState） END CATCH；     
You test the stored procedure and discover that it leaves open transactions.
You need to modify the stored procedure so that it properly handles the open transactions.
What should you do？（）