| 摘要 |
PROBLEM TO BE SOLVED: To handle data in various forms flexibly and dynamically, and to enable efficient retrieval and renewal. SOLUTION: Separate indexes are made to correspond respectively to a plurality of storage regions discriminated by an address, and entry corresponding to a record including an address value to the storage region is formed corresponding to each included address value, and registered in the index corresponding to the storage region discriminated by the address value.
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