Analyzing with Cross-Tabs
Database report writers and spreadsheet programs are typically considered to be two completely separate products. The database report writer sorts and selects data very well, while the spreadsheet is great for analyzing, totaling, and trending in a compact row-and-column format. Crystal Reports provides a tool that, to a limited extent, brings the two features together: the cross-tab object. A cross-tab is a row-and-column object that looks similar to a spreadsheet. It summarizes data by using at least three fields in the database: a row field, a column field, and a summarized field. For each intersection of the row and column fields, the summarized field is aggregated (summed, counted, or subjected to some ...