File managing method

摘要

In a file managing method, a preselected number of fields are subdivided from an original file so as to set the subdivided fields as blocks, all of these subdivided blocks are coupled to each other so as to rearrange these subdivided blocks as a group, as to all of the plural records, the respective subdivided blocks thereof are rearranged as the groups, and thereafter these rearranged groups are coupled to each other so as to produce a transposed file, and the fields are sequentially accessed at random from the transposed file every field. Also, a preselected number of groups are stored into a plurality of disk apparatuses, and the respective disk apparatuses are accessed in a parallel manner when the original file is accessed.