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。

youdao

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。

youdao

For the distributed database systems, query processing becomes more difficult because of distribution and redundance of data.

在分布式数据库系统中，由于数据的分布和冗余，查询处理变得更为复杂。

youdao

For the distributed database systems, query processing becomes more difficult because of distribution and redundance of data.

在分布式数据库系统中，由于数据的分布和冗余，查询处理变得更为复杂。

youdao