DATABASE RETRIEVAL SYSTEM AND COMPUTER-READABLE STORAGE MEDIUM STORING A PROGRAM FOR DATABASE RETRIEVAL

There is disclosed an information retrieval system which eliminates inconveniences associated with using a plurality of databases at the same time. A target database-extracting device extracts databases containing data as narrowing conditions. An integrated information retrieval device integrates data separately added to identical records in a plurality of databases in response to retrieval conditions input, and retrieves records matching the retrieval conditions based on integrated information of the data. A systematic information retrieval device is responsive to a systematic information retrieval command in which a particular record is designated, for retrieving, from the databases, other records systematically close to the designated particular record. A retrieval result display device displays results of the retrieval by the integrated retrieval device and results of the retrieval by the systematic information retrieval device.