| 摘要 |
PROBLEM TO BE SOLVED: To provide a database system that searches information in a database by a combination of a plurality of desired search methods. SOLUTION: A server 101 has a merchandise information database 301 for storing merchandise information 310. In response to a first search (for example, group tree search) command from a client terminal 103, the server 101 searches for merchandise information 310 matching the specified first search condition (search group). Next, in response to a complex search command (complex search ON, first and second search (group tree search, keyword search) specifications) and a second search condition (keyword for target item) from the client terminal 103, the server 101 AND (logical product)-searches the merchandise information database 301 for merchandise information 310 according to the first search condition and second search condition. COPYRIGHT: (C)2006,JPO&NCIPI
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