| 摘要 |
PROBLEM TO BE SOLVED: To reduce load for inputting a retrieving condition, and to prevent the occurrence of an input error. SOLUTION: The database retrieving apparatus comprises: an HDD 113 for storing retrieving conditions input in the past and past retrieved results based on the retrieving conditions as retrieval history information; a retrieval history control part 204 for recording a retrieving condition input by a voice input device 101 and a retrieved result based on the retrieving condition in the HDD 113 as retrieval history information; a retrieval expression generation part 205 for judging whether the inputted retrieving condition is narrowed retrieval from the preceding retrieved result or not on the basis of the past retrieval history data recorded in the HDD 113, and at the time of judging that the inputted retrieving condition is not the narrowed retrieval, setting the inputted retrieving condition as a new retrieving condition; and a retrieval part 206 for retrieving a required record from a program database 115 on the basis of the generated new retrieving condition. COPYRIGHT: (C)2005,JPO&NCIPI
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