index
A dynamic cross-reference of one or more table data fields (columns) that permits faster retrieval of specific records from a table. As records are added, changed, or deleted, the database management system automatically updates the index to reflect the changes.
When used with a table-type Recordset object, the current index determines the order in which data records are returned to the Recordset. A table may have several indexes defined for its data.
A DAO Index object represents an index for a TableDef object.