One Of Simple Design And Implementation For Data Storage And Query Module Of The Relational Data Base Management System

This year, for the information of the high-technology conditions,with unprecedented advantages, in particular the introduction of China's "core high base" scheme, the CPU as the representative of the "core electronic devices" to high-performance memory, high-end interface on behalf of the "high-end chip" and the operating system, database, represented by the "base software" of development has been referred to the strategic high-tech development in China. The result is a database management system of our country's development progress and plans have been greatly advanced. Relational database management system is bound to a more deepening and broad.The real storage management task for database management system is to complete the data organization and access, This area requires the definition of database management system can provide data in the external storage device and the physical organization of data is read into memory after the peripheral device with which the organization of the corresponding structure. And database management system and the need to provide data on the structure in memory and external memory access method appropriate and effective.Through these methods achieve the basic data in the database search, insert, modify, and delete the basic operations.This database system is based on the basic structure of a common relational database model. Data storage and processing of the object is a data page and the system buffer. Through the establishment of common data between pages B + tree index data page positioning. Each data record by rowid based on the establishment of the clustered index key search data records. Structure through the establishment of buffer memory management of database management. Core function as a system of data search. Database records the data dictionary definition of the structural changes.This article describes the structure of data storage problems in dealing with the basic feasible. But the need for effective query optimization, query processing, compilation and other related technical processing support, and needs coupled with database security, and other emergency command only with the results.