ONOFF
划词翻译
导航
建议反馈
词典App

relational algebra中文是什么意思

  • 相关代数, 关系代数

"查查词典"手机版

千万人都在用的超大词汇词典翻译APP

  • 例句与用法
  • 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。
  • It is implied by the associative and commutative transformations permitted in relational algebra
    它由关系代数中允许的关联转换和交换转换表示。
  • Leap is an rdbms ( relational database management system ) implementing the relational algebra - a core part of relational database theory
    Leap是一个rdbms ,它实现了关系代数,关系数据库理论的一个核心部分。
  • A clause is formalized as a relational algebra expression and evaluated by employment of relational algebra operations . 3 . the proof theory based on xml is presented
    提出了利用关系代数运算实现xml查询子句求值的方法,并证明了该方法的正确性。
  • This course is designed to introduce graduate students to the foundations of database systems , focusing on basics such as the relational algebra and data model , query optimization , query processing , and transactions
    课程描述本课程设计的目的是给研究生介绍数据库的基础知识,关注于基础,如关系代数和数据模型,查询优化、查询处理和事务。
  • An approach to formalize and evaluate relational algebra operations by means of xdd is presented . a query is formalized as one or more xml clauses and evaluated by employment of equivalent transformation of xdd
    提出了根据关系代数表达式构造查询子句的方法,关系代数表达式可以用若干个xml子句描述,并通过等价变换得到查询结果,证明了该方法的正确性。
  • In addition , because there is internal relationship between the formalism of relational database , " relational algebra " , and the clausal logic used by ilp , ilp methods can directly deal with mining task involved in multiple tables of relational database
    此外,由于关系数据库的形式描述? “关系代数”与ilp的子句逻辑有着内在的关联性, ilp技术可被直接用于涉及关系数据库中多个关系(表)的数据挖掘任务。
  • At the same time , we propose a representative data model , i . e . gt data model , and its query language . theoretically , we deeply study the temporal relational algebra and sql - like language based on our ter model , laying a solid theoretic foundation for our accelerator rjf cavity design system
    因此,论文提出了一个概念性数据模型,即时态实体一关系数据模型( ter模型厂提出了一个表示性数扼模型,即gt数据模型及其查询语言。
  • In order to unify stored data - mining results in pattern warehouse , the author probes intensively into the storage methods of data - mining results ( association rules , classification rules , sequential patterns ) . it proposes the storage methods to use the relational algebra to describe . this realizes consistent storage of data - mining results in relational database
    为使数据挖掘结果能统一存储在模式库中,作者对关联规则、分类规则和序列模式挖掘结果的存储方法进行了深入的研究,提出了数据挖掘结果模式的存储方法,并用关系代数进行了描述,在关系数据库中实现了多种数据挖掘结果模式的统一存储。
  • Topics include : relational databases , sql ( structured query language ) ; types , relations , relational algebra , integrity , view ; functional dependency theory , normalization , semantic modeling , entity - relationship modeling , conceptual database design ; concurrency control , security ; database and web connectivity , xml
    主题包括:关联式资料库、 sql (结构查询语言) ;资料类型、关联、关联式代数、完整性、景观表;功能依附理论、正规化、语义塑模、实体关联塑模、概念性资料库设计;同时操作控制、安全;资料库与网页连结、 xml (可扩展标示语言) 。
  • 更多例句:  1  2
  • 百科解释
In computer science, relational algebra is an offshoot of first-order logic and of algebra of sets concerned with operations over finitary relations, usually made more convenient to work with by identifying the components of a tuple by a name (called attribute) rather than by a numeric column index, which is what is called a relation in database terminology.
详细百科解释
  • 其他语种释义
  • 推荐英语阅读
relational algebra的中文翻译,relational algebra是什么意思,怎么用汉语翻译relational algebra,relational algebra的中文意思,relational algebra的中文relational algebra in Chineserelational algebra的中文relational algebra怎么读,发音,例句,用法和解释由查查在线词典提供,版权所有违者必究。

说出您的建议或使用心得