relational operators 中文意思是什麼

relational operators 解釋
關系操作符
  • relational : adj. 有關系的；親戚的；（特指語法上）表示關系的。adv. -ly
  • operators : （運算符）：可以從一個或多個值中計算獲得新值。例如，將兩個數值相加就可以獲得一個新值。
  1. Second, the dissertation addresses the global query rewriting issues of the service oriented spatial data integration. query rewriting and optimization methods are presented based on equivalent transformation of relational operators. we study the data replication issues of spatial data services and presents strategies to deal with data fragmentation and service selection

    其次，論文研究了面向空間數據服務集成的全局查詢重構問題，在關系代數等價變換基礎上提出了空間數據服務全局查詢重構和優化方法，並提出了面向分散式空間區域查詢的副本處理方法和資源選擇策略。
  2. New pivot and unpivot operators relational operators

    新的pivot和unpivot運算符（關系運算符）
  3. First, in this paper, a paraconsistent relational data model and its algebraic operators are introduced briefly. then, paraconsistent relational calculus based on this model is discussed and domain relational calculus for paraconsistent database is presented

    本文首先簡要介紹了次協調關系數據模型及其代數運算，並在此基礎上進一步討論了次協調關系演算，提出了次協調關繫上的域關系演算。
  4. Relational and equality operators

    關系運算符和相等運算符：
  5. Typeless programming with relational comparison operators the use of relational comparison operators with

    使用關系比較運算符的無類型編程
  6. The following example shows various uses of relational comparison operators, which you use to compare expressions

    下面的示例演示用來比較表達式的關系比較運算符的各種用法。
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