The Research Of Data Sharing Based On Distributed Database And Application In The CCAR-142 Project

The CCAR-142 project is that General Administration of China's Civil Aviation issued, it is a software system which is used to be management and examination by the flight training center. And it used to fill information, manage and check mission between user and monitor.This article researches Data sharing based on Distributed Database deeply. The article analysis the way of achievement by Data sharing and Database Link, by Data redundancy, and by Data redundancy and database-assisted for Data sharing. And, the article explores the strategy of Data consistency base on SQL Server Distributed Database. The CCAR-142 project is designed and completed according to requirement of the ccar-142project. On the basis the ccar-142 project is optimized. It is the Data consistency in the project by the way of object-management and lock-management when data is operated parallel. It improves the efficiency of the system in response.The project uses ASP language and SQL Server2000 database, and uses Dreamweaver tool to complete the project development.