It can reduce data redundance and improve data access efficiency.
该模型能有效降低数据冗余，提高数据访问效率。
All above must come to being data redundance, data exchange difficulty and work inefficiency.
这必然造成信息冗余，信息交换受阻，从而直接导致工作效率的降低。
The thesis introduces a structure of database system based on time, which reduces the data redundance.
提出了一种基于时态的数据库系统的基本结构，减少数据冗余。
应用推荐