| 摘要 |
In a database management method, a plurality of nodes are instructed to execute queries to the data base stored in a storage. A computer receives the input of the queries, and divides each input query into a plurality of processing phases constituting units capable of being executed in parallel. Based on the feature of the processing phases and the operating condition of each node at the time of execution of the processing phases of each query, the processing phases of the query are distributed among the nodes. The predetermined intended application of each node and the application of each query specified by the type of the query are compared with each other thereby to specify the nodes to which the processing phases are distributed.
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