Which Transact-SQL statement should you use?

You develop a Microsoft SQL Server 2012 server database that supports an application. The application contains a table that has the following definition:

CREATE TABLE Inventory

(ItemID int NOT NULL PRIMARY KEY,

ItemsInStore int NOT NULL,

ItemsInWarehouse int NOT NULL)

You need to create a computed column that returns the sum total of the ItemsInStore and ItemsInWarehouse values for each row.

Which Transact-SQL statement should you use?
A . ALTER TABLE Inventory
ADD TotalItems AS ItemsInStore + ItemsInWarehouse
B . ALTER TABLE Inventory
ADD ItemsInStore – ItemsInWarehouse = TotalItemss
C . ALTER TABLE Inventory
ADD TotalItems = ItemsInStore + ItemsInWarehouse
D . ALTER TABLE Inventory
ADD TotalItems AS SUM(ItemsInStore, ItemsInWarehouse);

View Answer

Answer: A

Explanation:

Reference: http://technet.microsoft.com/en-us/library/ms190273.aspx