AUTOMATIC GENERATING METHOD FOR EXTRACTION CONDITION OF DATABASE, AND DATABASE DEVICE WITH AUTOMATIC GENERATING FUNCTION FOR EXTRACTION CONDITION

摘要

PURPOSE: To automatically generate an extraction condition key for the database from data included in each field or record of the database. ;CONSTITUTION: A data extraction button generating means 103 is provided which generates data lists Ld1-Ldn of a selected field F or record R by sorting the data in the field F or record R, displays data extraction buttons on a screen corresponding to the field F or record R, and displays the data list corresponding to a selected data extraction button on the screen; and a user selects optional data out of the data list corresponding to the selected extraction button as extraction conditions of the database DB to obtain the retrieval condition key for the field F or record R, those processes are performed for plural fields F or records R, and the results are ANDed.;COPYRIGHT: (C)1996,JPO