METHOD FOR STORAGE AND REEXECUTION OF OBJECT ORIENTED QUERIES EVALUATION PLAN IN MAIN MEMORY DEVICE DATABASE MANAGEMENT SYSTEM

摘要

PURPOSE: A method for storage and reexecution of object oriented queries evaluation plan in main memory device database management system is provided so that store and reexecution of queries can be performed in MDBMS by compress, store and reexecution evaluation plan as an optimum result on the object oriented queries. CONSTITUTION: A method for storage and reexecution of object oriented queries evaluation plan in main memory device database management system includes several steps. A first step is to optimize object oriented queries and produce an evaluation plan. Because in the Main Memory Database Management System (MDBMS), data is to be ever to the memory, when storing the evaluation plan, a second step is to compress and store the evaluation plan in order to store many evaluation plans if possible within the extent of reexecution. A third step is to decode and reexecute the stored evaluation plan.