Liner regression with virtual variable stands as the main method of quantitative analysis method in this article . internal port capacity is also be analysed in order to match the port throughputs prediction . finally , the whole development strategy of longkou port is the central idea of this thesis 本文的定量预测主要采用英国分析法，即回归分析法对龙口港总吞吐量和集装箱吞吐量进行了预测，并对相应的港口战略能力进行了分析研究，以求达到龙口港港口战略能力和外界对港口的吞吐量需求量之间的最佳均衡。
This thesis , taking the reality of chinese port as the background , based on the analysis of macro & micro circumstance and internal strategic ability , makes a detailed study of port developing strategy of longkou port . first , the analysis of port strategic circumstance is premise to study development strategy 本论文以我国港口实际为背景，以龙口港为研究对象，通过分析龙口港外部宏微观战略环境和内部战略能力，分别研究了港口战略态势，港口吞吐量预测，从而最终确定龙口港发展战略，并提出了相应的战略措施。
This paper provides a discussion on the theory of distributed database , summarize the virtues and flaws of two - phase - commit protocol and replication technology , and then puts forward a synchronous update system model to solve the problems encountered while longkou port was realizing the data share among different kind of databases located in different area . this model , based on 2pc and the mainstream database replicate technology at present , can realize data sharing and data consistency among heterogeneous databases by odbc and tcp / ip technology , and now has been partly implemented 本文在讨论有关分布式数据库理论的基础上，总结了两阶段提交协议和数据库复制技术在异构型分布式数据同步中的优缺点，以龙口港信息系统在实现异构分布式数据库共享过程中遇到的问题为背景，利过odbc和tcp ip技术，对数据库更新事务进行存储转发，进而实现数据同步更新的系统模型，提出了一套网络环境下的分布式数据库同步机制。
