- METHOD AND APPARATUS FOR REDUCING QUERY PROCESSING TIME BY DYNAMICALLY CHANGING ALGORITHMS AND COMPUTER READABLE MEDIUM THEREFOR

摘要

According to one embodiment of the present disclosure, a method is provided for reducing query processing time through dynamic algorithm changes in a DBMS (Database Management System). The method comprising: receiving a database query from a client; Performing a first performance test for each of a plurality of performance algorithms for performing an operation related to the query; Performing an operation for processing the query using a first one of the plurality of execution algorithms, based on a result of the first performance test; And performing a second performance test for each of a plurality of performance algorithms for performing an operation associated with the query, while performing an operation for first processing the query using the first performance algorithm; And dynamically determining a time point of change from the first execution algorithm to the second execution algorithm among the plurality of execution algorithms in processing the query based on the results of the second performance test can do.