Record extraction method and apparatus in data processor

摘要

In performing record retrieval processing, a record retrieval processor (6) forms a two-dimensional distribution graph (FIG. 3) from a plurality of records stored in a record file (7) on the basis of designated items on the x- and y-axes and displays the distribution graph on a display unit (10). When a retrieval range is designated on the displayed distribution graph, the record retrieval processor retrieves records within the designated range, reads out records on the basis of key codes of the retrieved records corresponding to the items, and displays the radiate records on the display unit. <IMAGE>