In the application systems based on relational database, the design of database model directly determine the integrity, accuracy and coincidence of database, and has important affects on the performance and efficiency of the database.
In the application systems based on relational database, the design of database model directly determine the integrity, accuracy and coincidence of database, and has important affects on the performance and efficiency of the database.
摘要以关系数据库为基础的应用系统中，数据库模式的设计优劣直接决定了数据的完整性、准确性和一致性，对数据库的性能和效率也有着至关重要的影响。