| 摘要 |
PROBLEM TO BE SOLVED: To provide a data retrieving device, etc., which can retrieve both data of a 1st group recorded in a 1st recording part and data of a 2nd group recorded in a 2nd recording part together at a time. SOLUTION: This device is equipped with a data link information recording part 5 for recording data link information relating data 10 of the 1st group and data 12 of the 2nd group to each other, a data link part 11 which retrieves data from the 2nd recording part according to the data link information stored in the data link information recording part, and a data merging part 4 which retrieves data meeting an inputted retrieval condition from the 1st recording part, makes the data link part perform retrieval from the 2nd recording part, and merges and outputs both the pieces of data.
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