DATABASE, COMPUTER READABLE PROGRAM, DATABASE MANAGEMENT SYSTEM, NEW REGISTRATION METHOD FOR DATABASE, RETRIEVING METHOD IN DATABASE, AND UPDATE REGISTRATION METHOD FOR DATABASE

摘要

PROBLEM TO BE SOLVED: To prevent registration of a null value as a registration item value for preventing expansion of a database and to facilitate change of a data structure of the database 10.;SOLUTION: For each registered item name 12, a record having each registration item value 13 and an object ID 11 common between objects is formed. For each of the objects, a new registration screen and the object ID 11 are formed. In retrieval, the object ID 11 satisfying a retrieval condition is extracted for retrieving information of the object satisfying the retrieval condition. Determination of accordance/mismatch between the retrieval item value and the front/ end part of the registration item value 13 can be set as the retrieval condition. The retrieved registration item name 12 and the registration item value 13 are displayed in an input column to be used as a display screen of a retrieval result. When a change in the display screen is registered in the database 10, information is updated.;COPYRIGHT: (C)2003,JPO