| 摘要 |
PROBLEM TO BE SOLVED: To cause a plurality of systems corresponding to different table layouts to read/write data with respect to a common database.SOLUTION: A communication unit 101 communicates with a plurality of terminal devices (systems) via a network 30. A storage unit 102 stores a conversion definition file 1022 in which a conversion content for converting a query issued from a terminal device into a query accommodating to specifications of a commodity management DB 1021 is defined for every system. When receiving the query issued from the terminal device, the query conversion unit 1031 acquires a conversion content corresponding to the system from the conversion definition file 1022 and converts the received query on the basis of the acquired conversion content. The query conversion unit 1031 supplies a DBMS (DataBase Management System) processing unit 1032 with the query after the conversion. |
