A nonunique index does not require its values to be unique. There are occasions when a nonunique index is the best choice as the primary index for a table.
NUSIs are also very useful for many decision support situations.
A nonunique index does not require its values to be unique. There are occasions when a nonunique index is the best choice as the primary index for a table.
NUSIs are also very useful for many decision support situations.