You administer a Microsoft SQL Server 2012 database that contains a table named OrderDetail.
You discover that the NCI_OrderDetail_CustomerID non-clustered index is fragmented. You need to reduce fragmentation. You need to achieve this goal without
taking the index offline.
Which Transact-SQL batch should you use?
A.
CREATE INDEX NCI_OrderDetail_CustomerID ON OrderDetail.CustomerID WITH DROP EXISTING
B.
ALTER INDEX NCI_OrderDetail_CustomerID ON OrderDetail.CustomerID REORGANIZE
C.
ALTER INDEX ALL ON OrderDetail REBUILD
D.
ALTER INDEX NCI_OrderDetail_CustomerID ON OrderDetail.CustomerID REBUILD
Explanation:
http://msdn.microsoft.com/en-us/library/ms188388.aspx