DATA BASE SYSTEM

A data base system has a chart generation unit for generating a chart pattern in accordance with chart data applied thereto, an indicator management unit for managing a plurality of indicators which symbolize particular functions, and attribute information associated with the indicators, and an indicator pattern generation unit for generating indicator patterns representative of the indicators in accordance with the attribute information associated with the respective indicators, which attribute information are managed by the indicator management unit. The system further has a display unit having a screen, for displaying the chart pattern generated by the chart generation unit and the indicator patterns generated by the indicator pattern generation unit, on the screen as a retrieval chart, a designation unit for designating a desired area on the retrieval chart displayed on the screen, a extraction unit for extracting a plurality of indicators included in the area designated by the designation unit, by retrieving the attribute information managed by the indicator management unit, and a processing unit for processing together the indicators extracted by the extraction unit.