DATA ACQUISITION DEVICE, DATA ACQUISITION METHOD AND DATA ACQUISITION PROGRAM

摘要

The present invention is provided with: a command reception unit (110) that receives a query command (201) for acquiring data from a database, the query command (201) including a value designation range designating a range of definition values corresponding to the data to be acquired; an acquisition definition storage unit (160) that stores acquisition definition information (161) associating a value definition range with an acquisition method for acquiring data from the database; and a command generation unit (120) that determines whether or not the value designation range overlaps with the value definition range, and that, if there is determined to be an overlapping range, generates a data acquisition command (202) for acquiring data corresponding to the definition values included in the overlapping range using the acquisition method corresponding to the value definition range.