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relational model中文是什么意思

  • （關(guān)系模型）：以表（或關(guān)系）的形式表示數(shù)據(jù)的數(shù)據(jù)模型。
  • 關(guān)系模型

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  • 例句與用法
  • In this installment , he takes an in - depth look at modeling in the rdf world , and begins to look at developing a schema for the issue tracker and how it is similar to and different from object - oriented and relational modeling
    專欄作家uche ogbuji通過演示用來自現(xiàn)有xml格式的數(shù)據(jù)構(gòu)成“資源描述框架( rdf ) ”模型，開始了他的用xml進行的知識管理的實際探索。
  • With the development of the object - oriented technology , ordbms ( object - oriented database system ) , which based on the relational model , has been one of the most ubiquitous and promising research and application fields in the recent years
    隨著面向?qū)ο蠹夹g(shù)的發(fā)展，在近幾年內(nèi)基于成熟的關(guān)系模型上的對象-關(guān)系數(shù)據(jù)庫系統(tǒng)( ordbms )被廣泛接受且非常具有前景的研究以及應(yīng)用的領(lǐng)域。
  • But on the aspect of the development of database related systems , we encounter a hardship that the method of data storage management is on relational model while software coding is under object oriented model
    隨著面向?qū)ο蟮能浖_發(fā)方法的提出，數(shù)據(jù)在信息系統(tǒng)中的使用面臨著這樣一個困難，即：數(shù)據(jù)存儲是以關(guān)系模型來進行，而軟件開發(fā)以對象模型為基礎(chǔ)，造成了一定的困難。
  • The extract process have three steps : constructing echg of java system from java profile , extracting system ' s lexical relational model by scanning source code and analyzing the polymorphism calling location , constructing the semantic model by rule - based model mapping of lexical model
    抽取過程有三個階段：構(gòu)造系統(tǒng)的echg ，掃描程序的源代碼和多態(tài)點分析得到系統(tǒng)的詞法層次模型，通過基于規(guī)則的推理轉(zhuǎn)換詞法模型為語義模型。
  • The proposed method includes two stages : i ) using quality function deployment as a tool , by participating people with different disciplines , to explore customers ' genuine requirements and convert them into design parameters ; and 2 ) using fuzzy regression analysis to identify the relational model of customer requirements and design parameters
    本研究之方法分為兩階段： ( 1 )以品質(zhì)機能展開為架構(gòu)，藉著各部門人員的參與，將客戶最關(guān)心的需求轉(zhuǎn)化為關(guān)鍵的設(shè)計參數(shù)； ( 2 )透過專家評分， ?集品質(zhì)需求與設(shè)計參數(shù)間之對應(yīng)關(guān)系數(shù)據(jù)，并以模糊?歸分析建立兩者間關(guān)系的數(shù)學(xué)模型，以作為尋求最佳的設(shè)計參數(shù)的基礎(chǔ)。
  • In the past 30 years , the database system has already developed the no relational model , the next generation object - relational database system ( ordbs ) , the third generation object oriented database system ( oodbs ) . in the 1990s later , for the speed of the internet technique , the website base based on the internet promoted the information resource share
    經(jīng)過30年的發(fā)展，數(shù)據(jù)庫系統(tǒng)已經(jīng)歷了第一非關(guān)系型數(shù)據(jù)庫、第二代關(guān)系型數(shù)據(jù)庫( ordbs )的發(fā)展到面向?qū)ο髷?shù)據(jù)庫系統(tǒng)( oodbs )和各種專業(yè)數(shù)據(jù)庫。九十年代后由于互聯(lián)網(wǎng)絡(luò)技術(shù)的飛速發(fā)展，基于互聯(lián)網(wǎng)的網(wǎng)站數(shù)據(jù)庫技術(shù)為信息資源的共享提供了技術(shù)上的保障。
  • There are two areas innovation in my temporal data modeling . first is developing an arithmetic which implements information modeling by combining erwin tool and timeer model . second , an application - oriented and event - based temporal representational scheme is developed , which has advantages on following aspects : retaining simplicity of relational model , easy of implementation and query evaluation efficiency
    一是將timeer模型與erwin建模工具相結(jié)合，開發(fā)了一個用erwin建模時態(tài)信息模型的方法，并對時態(tài)約束進行了具體討論；二是在研究時態(tài)數(shù)據(jù)語義和時態(tài)數(shù)據(jù)關(guān)系模式的基礎(chǔ)上，結(jié)合具體的應(yīng)用實際開發(fā)了人力資源管理信息系統(tǒng)的時態(tài)關(guān)系模式及其相關(guān)的操作算法。
  • In autoore , a novel approach to extract java semantic relational model is presented . to get precise object relational result , the java code polymorphism invoke location is formal defined and a program analysis method based on extended class hierarchy graph ( echg ) is proposed
    代碼抽取是oore的起點，從起點開始支持理解是逆向工程的重要目標(biāo)， autoore在java抽取中，抽取模型采用文中提出的java詞法和語義兩個模型，利用一個基于java擴展類層次圖( echg )的多態(tài)調(diào)用點分析算法，得到更精確的靜態(tài)對象關(guān)系。
  • Involuntarily , questions of these engineering datas " management appear , datas " persistance only depending relational model and rdbms is greatly insufficient , so this paper carefully studies object - relational mapping based on rdbms based on the analyse of home & overseas actualities , correlative theories and realizing methods of object - relational mapping , we find opl based on rdbms is the most suitable for object relatinoal mapping of clera . based on the engineering application analyse of opl in clera , function requirements , database modes , interface criterions and functions , running modes of opl have being detailedly described . with the framework of microsoft dna , a kind of realizing method of opl based on com / dcom / activex component technology has being brought forward , and this paper describes realizing keys from base tables " definition , object id and class hx class and inheritance of class , object storage , parallel control and affair , object query , object nesting , relations between objects , support of complex data types , right control of object and buffer management of object
    本文在分析對象?關(guān)系映射技術(shù)的國內(nèi)外現(xiàn)狀、相關(guān)理論及實現(xiàn)方法的基礎(chǔ)上，研究發(fā)現(xiàn)基于rdbms的opl是目前最適合clera的對象?關(guān)系映射方法；在clera的opl應(yīng)用分析的基礎(chǔ)上，詳細描述了opl的功能要求、數(shù)據(jù)庫模式、接口規(guī)范與功能、運行方式等內(nèi)容；結(jié)合microsoftdna開發(fā)框架，提出了一種基于com dcom activex組件技術(shù)的opl實現(xiàn)思路，并從基本表定義、對象標(biāo)識與類標(biāo)識、類與類繼承、對象存儲、并發(fā)控制與事務(wù)、對象查詢、對象嵌套、對象間聯(lián)系、復(fù)雜數(shù)據(jù)類型的支持、對象級權(quán)限控制及對象緩沖管理等幾方面概述了實現(xiàn)要點。
  • By the review of the proceedings and history of the division of marine functional zonation , this paper gives the summary of the theory and technical methods systemically . to the questions for the concerned criterion , we discussed the objectives and their relations that dominate the results of the division . this paper try to define the spatial relational model ( srm ) and the calculate methods to describe the theory in a digital way
    本文回顧了我國海洋功能區(qū)劃的發(fā)展歷程，對我國海洋功能區(qū)劃的成果、理論與方法進行了較系統(tǒng)地總結(jié)，針對海洋功能區(qū)劃中存在的一些問題，作者重新討論了海洋功能區(qū)劃的對象及其之間需要處理的關(guān)系，本文試圖提出空間關(guān)系模型并給出海洋功能區(qū)劃可應(yīng)用的數(shù)量化方法，推動海洋功能區(qū)劃理論與方法的發(fā)展和深化。
  • 更多例句：  1  2  3  4
  • 百科解釋
The relational model for database management is a database model based on first-order predicate logic, first formulated and proposed in 1969 by Edgar F. Codd.
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