数据库表主键设计方法的探讨

本文结合数据库设计理论和实际软件研发经验，从不同角度阐述了数据库设计中键定义的方法，同时阐述了各种不同的设计方法带来的优点和缺陷，从而为数据库设计的稳定性、可靠性和可扩展性提供有力的保障，体现了在不同开发环境和不同的项目中，键的选择是不同的，应该以满足实际的业务需求为标准，严格的维护数据的完整性和数据库表的关联一致性。

Database Table Principal Linkage Design Method Discussion

This article unifies the database design theory and the actual software research and development experience, elaborated from the different angle in the database design the key defines the method, at the same time elaborated each different design method brings merit and flaw, thus for the database design stability, the reliability and may the extension provide the powerful safeguard, has manifested in different development environment and in the different project, the key choice is different, should take meet the actual service need as the standard, strict service data integrity and database table connection uniformity.