Patent ID: 6848047

Claim:
A system comprising a database distribution apparatus configured to write various types of databases in a portable recording medium and a portable terminal apparatus configured to execute data processing by accessing a database written in the recording medium while the recording medium is set in the terminal apparatus, the database distribution apparatus comprising: database storing means for storing a plurality of databases; identification information memory means for storing identification information corresponding to terminal identification information pre-stored in the portable terminal apparatus while associating the information to a plurality of portable terminal apparatus, respectively and grouping the identification information into a plurality of groups; and distribution means for, when writing a database to a plurality of recording mediums to which the databases are distributed, reading the identification information contained in a group selected from a plurality of groups, from the identification information memory means, reading a database stored in the database storing means to be utilized in a portable terminal device of the selected group, and writing the read identification information and databases consecutively to said plurality of recording mediums set in the portable terminal apparatus, and the portable terminal apparatus comprising: judging means for, when accessing the database, reading the identification information written in the recording medium set in the portable terminal apparatus and judging whether the portable terminal apparatus contains identification information corresponding to terminal identification information pre-stored in the portable terminal apparatus itself; and processing means for executing an accessing process to the database written in the memory medium when the judgment means judges that the corresponding identification information is contained.