PURPOSE:To facilitate the operation maintenance of a system by providing a table classified by JAN codes, an article management table, and a code-related table. CONSTITUTION:A retrieval control part 10 retrieves the table 7 classified by JAN codes, the code-related table 8, and the article management table 8 at a retrieval request from a keyboard 3 or POS system 5 to extract the corresponding record, which is outputted on a CRT display 2 or printer 4 or sent out to an updating control part 11. The updating control part 11 updates or totalizes the extracted record based on indication updating information inputted on the keyboard 3 or sales data from the POS station 5 to rewrite the corresponding record on the table.
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