Buongiorno, sto studiando per la certificazione e una delle domande è



You work as a database administrator at company
A query against the Sales.SalesOrderDetail table is performing poorly. You must
create an index that will cause the cost of the query to be as low as possible. You
must minimize the space that is used by the index. The index must contain as few
columns as possible.

There is an existing clustered index on the table. This index must not be dropped.

Because the table is on a production server, it is not possible to create different
indexes and test their performance.

You need to create the required indexes by using the New Index dialog box.

Non ho capito cosa devo fare con New Index dialog box?