DATABASE SYSTEM SHARED BY MULTIPLE CLIENT APPARATUSES, DATA RENEWAL METHOD, AND APPLICATION TO CHARACTER PROCESSORS

In a database system that connects a plurality of user database apparatus to a host database apparatus, the database system judges whether a data record stored in each user database satisfies a condition for being registered in the host database, and stores the data record if it satisfies the condition. The renewal and registration processing is performed for all data records of all user databases to register all data records that satisfies the registration condition. The data records registered in the host database are deleted from user databases. The database system can be applied to a system consists having a shared dictionary and user dictionaries such as a Japanese language word processor, English language word processor, and a mechanical translator.