Many Of The Massive Data Format Unification Access Efficiency Optimizes

Logic layer as data access layer, describe data overall logical structure. It is the user through the application system of the real world, see is the data system said. It provides for the user management data structure and systematic way. However, such design and will inevitably affect the efficiency of data access for logic structure, data access, at first, and then get logic described according to logic describing physical data, visit this point two-step access mode with the original physical data model to directly access compared with greater flexibility, but increased operating procedures and reduce the data access speed. In view of the above questions, through to the index database, database index technology, XML query technology research and application, realize the application layer to logic layer and logic layer to physical data layer in the process of data access optimization, and was put forward based on the analysis of the keyword density index database query algorithm of mass data query optimization method.The main research contents of this paper are as follows:1. Based on logic layer design studies. Realizing the formal description logic layer nodes with automata, and in application to test its feasibility.2. XML query technique research. This paper logic layer is realized through XML data access should first visit, this link, through the XML query optimization improve the efficiency of data access.3. Based on mass data structure index database design. Through will mass data section data structure information and indexed information storage database, data realization quick access.4. Based on keywords distribution density analysis index database query algorithm. Through over mass seismic exploration data structure analysis, design a consistent with its structure characteristics of data access algorithm, in order to realize data access optimization.At the end of this paper the research content, realize its various optimization techniques to alidate this paper puts forward relevant optimization technique and the feasibility and effectiveness of the algorithm.