JPH0457U

JPH0457U -

Info

Publication number: JPH0457U
Application number: JP3890290U
Authority: JP
Priority date: 1990-04-11
Filing date: 1990-04-11
Publication date: 1992-01-06

Description

[Brief explanation of the drawing]

図面は考案の実施例を示し、第１図は機能ブロ
ツク図、第２図は回路構成を示すブロツク図、第
３図はフアイルのレコード構造を示す図、第４図
および第５図は夫々動作を示すフローチヤートで
ある。１……データベース、２……テーブル、３……
指定手段、４……優先順位決定手段、５……検索
手段。 The drawings show an embodiment of the invention; FIG. 1 is a functional block diagram, FIG. 2 is a block diagram showing the circuit configuration, FIG. 3 is a diagram showing the file record structure, and FIGS. 4 and 5 are operational diagrams. This is a flowchart showing the following. 1...Database, 2...Table, 3...
Specifying means, 4...Priority determining means, 5...Searching means.

Claims

[Scope of Claim for Utility Model Registration] A database storing a file consisting of a plurality of record data, a table storing the number of data types for each of the plurality of item words constituting the record data, and an item in a desired record. A specification means for arbitrarily specifying the data condition of a word for any plurality of item words, and the number of data types corresponding to each item word specified by this specification means is read from the above table, and the number of data types is determined. a priority determining means for determining the priority of each item word in descending order of priority; and matching the data condition of each item word specified by the above-mentioned specifying means according to the priority of each item word determined by this priority determining means. A data retrieval device comprising: a retrieval means for sequentially narrowing down and retrieving record data from the database.