Join processor for relational database

摘要

A join processor for relational databases, which includes a main processor (1) for processing information; a main memory (2) connected to the main processor to store information; a plurality of auxiliary processors (3) controlled by the main processor; a plurality of auxiliary memories (4) each connected to the corresponding auxiliary processor; and a device for enabling said auxiliary processors to perform in parallel dividing and storing relations of relational databases in the auxiliary memories in units of record and extracting from the auxiliary memories and sorting join fields of the relations to be joined.