索引在飞行仿真系统数据库中的应用与优化

仿真数据库在计算机飞行仿真系统中具有相当重要的地位，整个仿真的过程都是围绕仿真数据库中的数据进行的。仿真结果数据是仿真数据库中最重要的数据，并且是海量的数据，要求有高效的方法对这些数据进行访问、处理。针对此问题，对仿真数据库中的索引技术进行了重点研究。索引技术是数据库应用中提高数据检索最有效的方法，如何有效利用索引技术来优化数据库是提高飞行仿真系统性能的一个重点。结合飞行仿真数据库系统的开发和应用实践，对索引的建立和优化进行了深入研究，提出了仿真数据库中索引的应用策略，并应用到飞行仿真系统的仿真数据库中。仿真结果表明，提出的索引策略有效地提高了仿真数据库的性能。

Application &Optimization of Index on Database used in Flight Simulation System

Simulation database has the most important rule in a computer flight simulation system, and each part of simulation system is correlative to it tightly. There is a great deal of simulation result data in simulation database. Simulation result data is the most important. After simulation testing, the simulation effect need to evaluate. We must have a effective method to deal with a great deal of simulation result data in simulation database. To solve the problem, the paper researches on application and optimization on index of the simulation database. Index is the most efficient method while improving data query efficiency with SQL in database application, how to improve performance of flight simulation system by using index to optimize database efficiently is an emphasis . This paper is based on development and application of some flight simulation database system, and introduces index technology and index types. We make deep search on how to create index and how to optimize it, then propose some method on index which used in simulation database. Finally we realize improvement of performance in database system truly.