| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce imbalance of a load by manupilating allocation of a storage region dividedly storing a database. <P>SOLUTION: A plurality of set key ranges are coordinated with a plurality of data storage regions provided in a storage. When storing data in the database, the data is stored in a data storage region corresponding to a key range including the data. When an allocation request for the data storage region and the key range is received, the data storage region is coordinated with the key range. Since the data storage region can be coordinated with a key range allocated with a small amount or a large amount of data, the imbalance of a load to each data storage region can be reduced. <P>COPYRIGHT: (C)2004,JPO</p> |
