Index implementations:
Indexes can be implemented using a variety of data structures. Popular indexes include balanced trees, B+ trees and hashes.
In Microsoft SQL Server, the leaf node of the clustered index corresponds to the actual data, not simply a pointer to data that resides elsewhere, as is the case with a non-clustered index. Each relation can have a single clustered index and many unclustered indexes.
Indexes can be implemented using a variety of data structures. Popular indexes include balanced trees, B+ trees and hashes.
In Microsoft SQL Server, the leaf node of the clustered index corresponds to the actual data, not simply a pointer to data that resides elsewhere, as is the case with a non-clustered index. Each relation can have a single clustered index and many unclustered indexes.
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