DATABASE LOAD DISTRIBUTION APPARATUS, DATABASE LOAD DISTRIBUTION METHOD, AND DATABASE LOAD DISTRIBUTION PROGRAM MOUNTED WITH SAME METHOD

摘要

PROBLEM TO BE SOLVED: To distribute execution loads of a simple update query and a complicated update query when executing update queries.;SOLUTION: A simple update query distribution device 11e which causes all database managers having first data to take charge of execution of a simple update query which refers to the first data to update the first data and a complicated update query distribution device 11f which generates a query in accordance with a relation between a database having the first data disposed therein and a database having second data disposed therein to cause a database manager corresponding to this query to take charge of execution of a complicated update query which refers to the first data to update the second data are adapted to the simple update query and the complicated update query into which processing contents of a query is decomposed by analysis.;COPYRIGHT: (C)2008,JPO&INPIT