Database management apparatus and query dividing method

Abstract

According to one embodiment, a database management apparatus capable of operating as one of a plurality of servers constituting a distributed database in a tree structure includes a processor configured to manage server information of an own server and a subordinate server, analyze an input query, and decide a table used for the query, determine a generation number of query executing modules configured to execute the query, based on the server information of the own server and the subordinate server, and divide the query according to the generation number if a plurality of query executing modules is generated for a subordinate server and accumulate a result of the query executed by the query executing modules of the determined generation number.

Dependencies are inferred from the claim text.