relational calculus

relational calculus 基本解释

网络  关系演算; 关系运算; 关系型积分; 关联式计算; 关联逻辑

计算机

重点词汇

• relationala. 有关系的, 有联系的, 亲属的, 有亲属关系的 [计] 相关的, 关系的
• calculusn. 结石；微积分学

relational calculus 双语例句

1. 1、 This paper introduces a method to correctly design the query expression of relational calculus while analyzing its functional mechanism and presents the close relationship with SQL language by taking examples.
   在分析关系演算运行机制的同时，介绍了一种易于正确理解和设计关系演算表达式的方法，并通过实例揭示了它与SQL语言之间的密切联系。
2. 2、 Based on this model, this paper constructs two different kinds of fuzzy database query languages: the fuzzy relational algebra and fuzzy relational calculus.
   在此基础上，构造了两类不同的模糊数据库查询语言：模糊关系代数和模糊关系演算。
3. 3、 A Relational Chart for the Concepts of Differential Calculus of Functions of Several Variables
   多元函数微分学诸概念关系图
4. 4、 A Fuzzy Relational Algebra and Fuzzy relational calculus
   一种模糊关系代数与模糊关系演算
5. 5、 Our approach is based on an extended relational calculus, and reduces the consistency problem to a satisfiability problem of relational formulae.
   该方法以扩展的关系逻辑为语义基础，把一致性问题归结为关系逻辑公式的可满足性问题。
6. 6、 Corresponding relation of the relational algebra calculus and SQL query
   关系代数运算与SQL查询的对应关系
7. 7、 This paper establishes a temporal relational algebra and a tern-poral tuple calculus, and proves their equivalence.
   建立了一个时态关系代数和时态元组演算并证明了他们间的等价性。
8. 8、 Analysis and Research of Functional Mechanism of relational calculus
   关系演算运行机制的分析与研究
9. 9、 For the relational algebra to the relational calculus of transformation rules, this change mainly to solve the dual operation, we found more computing re-defined with a very complex transformation rules, What can multiple operations from a single weight o
   针对关系代数到关系演算的转换规则，本文主要解决两重运算的转换，我们发现更多重的运算转换规则定义起来十分复杂，况且多重的运算完全可以由单重的或两重的运算多步来实现。