relational algebra

When relational tuples are flowing from mass storage to host via this filter, the unary operations of relational algebra for them such as projection and selection are completed parallelly.

使关系元组在由外存至主机的流动过程中就并行完成筛选、投影关系代数的一元运算。

The MS algebra extends the relational algebra with extended operation semantics, the extended set of operation objects and new algebraic operators that support the statistical analysis queries. MS algebra is a theoretical framework for statistical and scientific database query languages.

二是MS代数包括很多支持统计分析查询的新代数操作，MS代数是构造对用户友好的统计与科学数据库查询语言的理论基础。

In relational databases, an operator in relational algebra.

在关系数据库中, 关系代数用的一种运算符.

Understand relational algebra and calculus and why they are important.

理解关系代数和微积分,他们为什么是重要的.

N-relational algebra we present can serve as an abstract data query language for an incomplete relational database.

N关系代可用来作为处理数据库中空值问题的抽象数据查询语言。

Analysis of Association Algebra-An OODB Theory Analogous to Relational Algebra

类关系代数的OODB理论&关联代数的分析