| 摘要 |
In order to make possible a variety of database searches, image data is registered on a first hard disk and a plurality of attribute tables each containing attribute information regarding images are registered on a second hard disk. When one search condition has been applied, a search of attribute information is conducted using one attribute table conforming to the search condition from among the attribute tables stored on the second hard disk. When another search condition has been applied, a search of attribute information is conducted using another attribute table stored on the second hard disk. Thus, a database can be searched even when search conditions differ.
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