| Subject | Italian | English |
| comp., MS | indice cluster | clustered index (A B-tree-based index in which the logical order of the key values determines the physical order of the corresponding rows in a table) |
| comp., MS | indice non cluster | nonclustered index (A B-tree-based index in which the logical order of the index key values is different than the physical order of the corresponding rows in a table. The index contains row locators that point to the storage location of the table data) |