| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to change a set rule to an appropriate rule.SOLUTION: A data extraction program causes a computer to execute processing of: performing first data extraction in accordance with a set rule and performing second data extraction in accordance with a plurality of derived rules automatically generated by changing some conditions in the set rule (S13); and when the plurality of derived rules include a derived rule indicating extraction status of data matching a preset condition, notifying existence of the derived rule (S14). |
