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semantic constraint中文是什么意思

  • 語(yǔ)義限制,語(yǔ)義約束

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  • 例句與用法
  • However, certain semantic constraints can be expressed as syntactic ones
    然而,某些語(yǔ)義約束可以表達(dá)為語(yǔ)法約束。
  • Occurs when stored data fails to satisfy certain syntactic or semantic constraints
    在已存儲(chǔ)的數(shù)據(jù)不能滿足某些句法或語(yǔ)義約束時(shí)發(fā)生。
  • semantic constraints on the nouns in chinese quot; adverbs of degree noun quot; constructions
    句法手段對(duì)名詞性并列結(jié)構(gòu)中語(yǔ)義量級(jí)的強(qiáng)制
  • Your document rules primarily concern nesting of elements, not semantic constraints on contents as in prose markup
    您的文檔規(guī)則主要考慮元素的嵌套而不是內(nèi)容的語(yǔ)義約束(如同使用散文標(biāo)記)。
  • No syntactic constraints are imposed on the ways in which expressions can be composed though the language does have some semantic constraints
    雖然語(yǔ)言具有語(yǔ)義約束,但對(duì)于表達(dá)式的構(gòu)造方式卻沒(méi)有施加語(yǔ)義約束。
  • The relax ng compact syntax provides a much less verbose, and easier to read, format for describing the same semantic constraints as relax ng xml syntax
    relaxng緊湊語(yǔ)法提供了一種格式用于描述與relaxngxml語(yǔ)法相同的語(yǔ)義約束,這種格式更簡(jiǎn)潔、更易于閱讀。
  • 2 ) based on xml keys which define the semantic constraints of xml document, we present a storing method, which stores xml documents while conserving their key constraints
    2)基于xml鍵約束的概念,提出了一種將xml文檔保持xml鍵約束地映射到關(guān)系數(shù)據(jù)庫(kù)中的方法。
  • This bug occurs when stored data fails to satisfy certain syntactic or semantic constraints; when software crashes due to an error, not in the coding, but in the data the code is manipulating
    這種錯(cuò)誤在已存儲(chǔ)的數(shù)據(jù)不能滿足某些句法或語(yǔ)義約束時(shí)發(fā)生;此時(shí)軟件會(huì)因?yàn)榇a操縱的數(shù)據(jù)中的錯(cuò)誤而不是編碼中的錯(cuò)誤而崩潰。
  • Aiming at this problem, the main research issues and achievements in this paper are as follows : bi-directional data transformation between rdb and xml with semantic constraints preserved for most of existing researches on static data transformation between xml and rdb, dtd is taken as the schema description language for xml, and the semantic constraints are often lost during the transformation process . to overcome these disadvantages, the author adopts xml-schema, a standard schema description language proposed by w3c to replace dtd, as the description method owing to its more powerful functions than dtd, and of course with the syntax much more complicated . after analyzing the constraints characteristics in both xml-schema and relational schema, a semantic constraints-preserved algorithm is proposed which can realize the bi-directional schema mapping between rdb and xml through a formalized description of xml based on regular tree and a general expression for relational schema based on direct graph approach
    保留語(yǔ)義約束的xml與rdb雙向靜態(tài)數(shù)據(jù)轉(zhuǎn)換技術(shù)現(xiàn)有研究大多采用dtd(documenttypedefinition,文檔類(lèi)型定義)作為xml的模式描述語(yǔ)言,并且在模式映射過(guò)程中丟失語(yǔ)義約束信息,本文分析了xml-schema(xml-schema采用與dtd完全不同的語(yǔ)法,數(shù)據(jù)描述能力更強(qiáng)同時(shí)也更為復(fù)雜,已被w3c確定為替代dtd作為xml模式描述語(yǔ)言的標(biāo)準(zhǔn))及關(guān)系模式的語(yǔ)義約束特征,通過(guò)基于正則樹(shù)的xml形式化描述方法以及基于有向圖的一般關(guān)系模式表示方法的研究,建立保留語(yǔ)義約束的xml-schema與關(guān)系模式的雙向模式映射算法,實(shí)現(xiàn)了xml與rdb的雙向數(shù)據(jù)轉(zhuǎn)換,較好地解決了xml與rdb在靜態(tài)數(shù)據(jù)轉(zhuǎn)換層面的數(shù)據(jù)集成問(wèn)題,可有效滿足企業(yè)大量rdb數(shù)據(jù)面向xml的發(fā)布以及與日俱增的xml數(shù)據(jù)存入rdb的應(yīng)用需求。
  • Aiming at this problem, the main research issues and achievements in this paper are as follows : bi-directional data transformation between rdb and xml with semantic constraints preserved for most of existing researches on static data transformation between xml and rdb, dtd is taken as the schema description language for xml, and the semantic constraints are often lost during the transformation process . to overcome these disadvantages, the author adopts xml-schema, a standard schema description language proposed by w3c to replace dtd, as the description method owing to its more powerful functions than dtd, and of course with the syntax much more complicated . after analyzing the constraints characteristics in both xml-schema and relational schema, a semantic constraints-preserved algorithm is proposed which can realize the bi-directional schema mapping between rdb and xml through a formalized description of xml based on regular tree and a general expression for relational schema based on direct graph approach
    保留語(yǔ)義約束的xml與rdb雙向靜態(tài)數(shù)據(jù)轉(zhuǎn)換技術(shù)現(xiàn)有研究大多采用dtd(documenttypedefinition,文檔類(lèi)型定義)作為xml的模式描述語(yǔ)言,并且在模式映射過(guò)程中丟失語(yǔ)義約束信息,本文分析了xml-schema(xml-schema采用與dtd完全不同的語(yǔ)法,數(shù)據(jù)描述能力更強(qiáng)同時(shí)也更為復(fù)雜,已被w3c確定為替代dtd作為xml模式描述語(yǔ)言的標(biāo)準(zhǔn))及關(guān)系模式的語(yǔ)義約束特征,通過(guò)基于正則樹(shù)的xml形式化描述方法以及基于有向圖的一般關(guān)系模式表示方法的研究,建立保留語(yǔ)義約束的xml-schema與關(guān)系模式的雙向模式映射算法,實(shí)現(xiàn)了xml與rdb的雙向數(shù)據(jù)轉(zhuǎn)換,較好地解決了xml與rdb在靜態(tài)數(shù)據(jù)轉(zhuǎn)換層面的數(shù)據(jù)集成問(wèn)題,可有效滿足企業(yè)大量rdb數(shù)據(jù)面向xml的發(fā)布以及與日俱增的xml數(shù)據(jù)存入rdb的應(yīng)用需求。
  • 更多例句:  1  2
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