Author(s)

Wenge Tian, Jianhai Liu, Huina Yu

Corresponding Author

Wenge Tian

Abstract

In recent years, the country strengthens the occupation education, increases to the high vocational high technical college education support strength, our country's high vocational high technical college education high speed development, each high vocational high technical school scale expands day by day, the school condition also obtained the actual improvement, but the high vocational high technical college English teaching method and the way are relatively backward. The traditional teaching methods and methods are obviously not suitable for the requirements of The Times. In this paper, combining with the modern teaching concept, making full use of network resources, developing the electromechanical English teaching system of vocational colleges with the characteristics of informatization and modernization, and adopting the software engineering thought, the English network auxiliary teaching system of vocational colleges is designed and implemented. This paper designs a new semi connection database query algorithm, the intermediate results from all child network data as the decisive factor of cost, and define a function, the experiment results show that in a distributed query optimization, and general half connection algorithm, the improved half connection query optimization algorithm has higher efficiency of optimization, the intermediate results are greatly reduces the amount of data, effectively reduce the total cost of the English teaching assistant system communication.

Keywords

English Teaching, Distributed Database, Query Optimization, Mark the Second Half Connection