Setting principles of key code attribute in database application system
Lihui Cong · 2008
Most of the key attributes in database application system are usually presented as code form,and their setting standardization and methods may have important influences on the system performance.The types of code attribute,primary file and code file are divided in details,then the general setting principles and design standardization fitting for different code are proposed.Aiming at grading codes,two grade setting principles are presented.Practical application results show that these principles can assure the key code attributes set correctly.