A technique for displaying and searching databases provides a user interface that displays a list of attribute values of a product along with corresponding user interface elements, each containing a set of clickable sub-elements corresponding to subsets of possible attribute values with different ranks. The sub-element whose corresponding rank matches a corresponding rank of the attribute value is displayed as highlighted. Clicking a sub-element constrains a current selected set of products to those whose attribute values have the same rank as the clicked sub-element. On mouse-over of a selected sub-element, pop-up text is displayed containing a set of possible attribute values whose rank corresponds to that of the selected sub-element, and decision support information associated with each of the displayed possible attribute values, e.g., a percentage of users who have selected the attribute value, a percentage of users who have purchased a product with the attribute value, or a price range of product records having the attribute value.