Design And Realize Of Real-time Main Memory Database

The real-time main memory database system is a database system with time limiting data and transactions. Its basic features are that the data are not only with logic consistency, but also with external and interactive consistency, and the transactions are with liming too. With the hope of our industry should be more intelligent, the real-time main memory database system has been the hot-topic in the field of industry control research. And with the rapid evolvement of the technologies of database, the real-time main memory database system has been widely used in the field of industrial control. In recent years, it has become one of the most important research directions of the present-day database, and more and more expert in database domain has paid attention to it.This thesis is mainly about the research of real-time main memory database system. After some key concepts about the real-time database system, the study goal and significance of this paper were presented. Subsequently, analyses the whole demand and system structure of the real-time database system. Drawing lessons from the traditional configuration software, the design scheme and detailed realization of the real-time database system was presented in this paper according to the features of the real-time database system. The organization form of the database and the index are based on the hash table and T tree that is a simple and a high efficient structure. This kind of structure makes the search of position of data more brieffer. As to the dealing of the historical data, the issue provides a way of data buffer, which construct a thread with lowers PRI to deal with the historical data, to increase the reasonability of storage time. By this way, we could increase the performance of real-time main memory database. And at the end of this thesis, a summary is given, and several issues need to be further improved or continuously researched are discussed.This thesis provides us with a full description on the design thought, the whole frame and detailed realization of the real-time main memory database system which set up a good basic for this project′s lucubrate of the same field, and it can be very good referenced.