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- 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。
- In relational algebra, the problems I discussed in this article are called relational division. 在关系代数中,我在本文中讨论的问题称为关系划分。
- From the perspective of relational algebra,decomposes any query to the sub-query on data partitioned horizontally and the post-query on merged intermediate results. 从关系代数的角度,将任意查询分解成对水平数据分区的子查询和汇总中间结果的后处理查询。
- Relational Algebra and Relational Calculus 关系代数与关系演算
- Temporal Extension of Relational Algebra Operators 关系代数操作符的时态扩展
- This paper introduces the concept of generalized fuzzy relation and extends relational algebra operators such as union, intersection, difference, Cartesian product, selection, projection etc. 文中引入了广义模糊关系的概念，讨论了广义模糊关系代数的操作：广义模糊并、广义模糊交、广义模糊差、广义模糊笛卡尔积、广义模糊投影和广义模糊选择等。
- original relational algebra operators 原始算子
- ER() also gives a set of integrity rules.ER() expends relation model and relation algebra and uses object oriented and relation model to present multidimensional data. ER()给出了一组完整性规则.;扩充了关系模型和关系代数;使得能用关系对象模型表示多维数据
- derived relational algebra operators 关系代数的派生算子
- Logical operators describe the relational algebraic operation used to process a statement. 逻辑运算符描述了用于处理语句的关系代数操作。
- The boy can't figure out the algebra problems. 这个男孩做不出这道代数题。
- We've learned algebra in middle school. 我在中学就学过代数学。
- She was studying to build up her algebra. 她在学习以提高自己的代数水平。
- Workflow engine on top of temporal relational algebra 基于时态关系代数的工作流引擎
- Are you stuck over your algebra? 你的代数题做不下去了吧？
- He finally got the answer to the algebra problem. 他终於算出了这道代数题的答案。
- A Study of Query Optimization Method Based on Equivalence of Relational Algebra 等价关系代数查询优化方法的研究
- TRANSFORMATIONS OF RESTRICTED RELATIONAL ALGEBRA IN DISTRIBUTED DATABASE 分布式数据库中的限定关系代数变换
- Discussion of Category Model of Relational Algebra in Relational Database 关系数据库中关系代数范畴模型的讨论
- Open task management policy and workflow attribute relational algebra 开放任务管理策略与工作流属性关系代数
