Data memory management method in real-time database management system (DBMS)

摘要

The present invention relates to a method for managing a memory in a database management system (DBMS) applied to an electronic exchanger.;In the present invention, when a memory reconfiguration request is input to each processor from an operator via the MMP 10, a start address and an end address of a memory area of a meaningful database (hereinafter referred to as a DB) are stored, A first step (11-13) of confirming whether the record is a canceled record or a meaningful record from the start record, and if there is a canceled record as a result of the first step (11-13) A second step (16,17) of storing the address value in the memory and checking whether the next record is also within the DB memory area; and if the record in the DB memory area is deleted after the second step (16,17) If it is a meaningful record by confirming the record authorization, the contents of the record are moved from the stored start address, the address value is newly added by the length of the moved record, A third step (18-21) of newly recording the record address value stored at that time point and the amount of spare memory obtained as a result of the reconstruction in the spare memory information table, If the record is meaningful and the next records are also in the DB memory area and all are meaningful records, the memory reconstruction is no longer required. Therefore, the fourth step (14, 15) of transferring the memory reconstruction result to the MMP 10 and terminating And the like.