摘要:
A sorting method used with a distributed database having a plurality of first processors (203) for holding partial records of database divided into a plurality of portions and a host processor (201) for accessing to each of the first processors, comprising the steps of: assigning a plurality of sections into which the distribution range of key values of records of the database is partitioned to a plurality of second processors (204) in the first processors (203); transferring the key values of the plurality of records of the portions of the database held in the first processors (203), and information for representing storage positions of the records to the second processors to which the sections of the key values, to which the records belong, are assigned; and sorting the plurality of key values, which have been received, in the second processors (204) to produce key tables (212) in which the information for representing the storage positions of the records which has been received is registrated together with the sorted key values, as the sorting result.
摘要:
A sorting method used with a distributed database having a plurality of first processors (203) for holding partial records of database divided into a plurality of portions and a host processor (201) for accessing to each of the first processors, comprising the steps of: assigning a plurality of sections into which the distribution range of key values of records of the database is partitioned to a plurality of second processors (204) in the first processors (203); transferring the key values of the plurality of records of the portions of the database held in the first processors (203), and information for representing storage positions of the records to the second processors to which the sections of the key values, to which the records belong, are assigned; and sorting the plurality of key values, which have been received, in the second processors (204) to produce key tables (212) in which the information for representing the storage positions of the records which has been received is registrated together with the sorted key values, as the sorting result.