摘要 |
A method of defining in a computer system a subset of entries in a database is described. The subset is defined by a query. The method includes displaying an interface having a number of criteria description locations. The criteria description locations being positioned in rows where each row has one or more columns. The method also includes creating a criteria description in the interface. The criteria description corresponds to criteria, where the criteria define a corresponding subset of the database. Importantly, the relative location of the criteria description in the user interface determines how the criteria contribute to the selectivity of the query. |