Study Of The Real-time Embedded Database In Transmission Product

The study of the real-time embedded database is described in the paper. The real-time embedded database is carefully discussed and studied also with the database realization of the transmission products in this paper. The database is discussed in the following four aspects:Firstly, The development and prospect of the real-time embedded database is described in the paper. As a database subsidiary, real-time embedded database has its strong historical background and customer demand. Nowadays with database being more and more complete and sophisticated, the real-time embedded database becomes more and more popular.Secondly,The basic theory and realization methods of the real-time embedded database' s fundamental functions are discussed in the paper. The first part describes the key technologies of embedded database, and integrates the data structure, object-oriented philosophy and database technology successfully. And also in this part, deep research is conducted into the key technology security in the database field, and event management, latch technology and multiple accesses to users have been realized in this part.Thirdly, the paper studies another key technology of the real-time embedded database : high efficient SQL compiler. The core technology of the SQL compiler has been discussed and explained theoretically and a SQL compiler with comprehensive functions has been realized by adopting the two tools, LEX and YACC in the UNIX.At last, the paper provides an important innovation theoretically: forwarding innovation to improve the database execution efficiency stemming from the characteristics of the real-time embedded database.