DATA SEARCH DEVICE, DATA SEARCH METHOD AND PROGRAM

摘要

The invention is a data search device provided with a processor, a storage device and a communication control unit, and is provided with: a registration unit that stores data containing a character string, and stores an index for searching the character string of said data, said data and said index being stored in the storage device; and a search unit that receives a search condition containing a character string, and executes a search using the index. The registration unit generates each index for a specified unit quantity into which the data is refined. From the search condition, the search unit refines the data into portions of the aforementioned unit quantity, and for every unit quantity of the refined data, searches the index using the character string contained in the search condition.