schema mapping造句
例句與造句
- specifies how to handle existing schema mappings when performing a
操作時(shí)如何處理現(xiàn)有的架構(gòu)映射。 - xml schema mapping
xml模式映射 - to an instance of the data source that matches the schema mapped to the document, such as an instance of the typed
綁定到與映射到文檔的架構(gòu)匹配的數(shù)據(jù)源的實(shí)例,如創(chuàng)建的類(lèi)型化 - users are not required to understand the property syntax; it is handled automatically through internal schema mapping
處理。用戶無(wú)需理解屬性語(yǔ)法;它將通過(guò)內(nèi)部架構(gòu)映射自動(dòng)處理。 - if such a principal creates an object without specifying a schema, sql server will create an implicit user and schema mapped to the windows principal
如果這樣的主體在不指定架構(gòu)的情況下創(chuàng)建對(duì)象,則sqlserver將創(chuàng)建映射到windows主體的隱式用戶和架構(gòu)。 - It's difficult to find schema mapping in a sentence. 用schema mapping造句挺難的
- yes, all of the models in figure 1 could be improved, but i needed a simple example that showed how different object schemas mapping to the same data schema
是的,圖表1中的所有模型都可以改進(jìn),但是我只是需要一個(gè)展示不同對(duì)象模式怎樣映射到同一數(shù)據(jù)模式的簡(jiǎn)單例子。 - a schema mapping templete is defined by the segmental modeling for xml schema and the relational schema will be transformed to xml schema according to this schema mapping templete
基于該模版將關(guān)系模式轉(zhuǎn)化為xmlschema模式的描述,完成模式映射。該算法為論文的創(chuàng)新點(diǎn)之一。 - a schema mapping templete is defined by the segmental modeling for xml schema and the relational schema will be transformed to xml schema according to this schema mapping templete
基于該模版將關(guān)系模式轉(zhuǎn)化為xmlschema模式的描述,完成模式映射。該算法為論文的創(chuàng)新點(diǎn)之一。 - there are two main factors to influence materialized views in pdmss . one is that schema mappings between peers are changed, and the other is that peers update their data
在pdms中有兩個(gè)主要因素影響物化視圖:第一是peer之間的模式映射發(fā)生了改變,第二是有peer更新了它的數(shù)據(jù)。 - in chapter 3, the technique of schema mapping between different step application protocols is discussed . the significance of schema mapping between step application protocols is stated
闡述了step模式間映射的意義,并對(duì)用express-x進(jìn)行step模式映射的技術(shù)難度做了一定的分析。 - in chapter 3, the technique of schema mapping between different step application protocols is discussed . the significance of schema mapping between step application protocols is stated
闡述了step模式間映射的意義,并對(duì)用express-x進(jìn)行step模式映射的技術(shù)難度做了一定的分析。 - it is difficult to implement for schema mapping between different step application protocols through exress-x language that are guided by step . lastly, the quantity of application protocols in common use is not too much and the application protocols are integrated in actual manufacturing fields
最后,針對(duì)目前制造領(lǐng)域中常用的應(yīng)用協(xié)議不多且協(xié)議已具完整性的特點(diǎn),研究了一種簡(jiǎn)單而又實(shí)用的方法來(lái)實(shí)現(xiàn)ap203到pdmschema的模式映射。 - 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。 - 3 ) presentation and implementation of key-based relational schema reverse reconstruction algorithm ( krr ) . based on discrete mathematics theory, a krr algorithm is proposed which can realize the transformation from relational schema to directed graph structure and get a good data preparation for the sequential schema mapping
3)提出基于key的關(guān)系模式重構(gòu)算法以離散數(shù)學(xué)理論為基礎(chǔ),對(duì)關(guān)系模式數(shù)學(xué)建模,通過(guò)提出基于key的關(guān)系模式重構(gòu)算法,將關(guān)系模式轉(zhuǎn)化為有向圖數(shù)據(jù)結(jié)構(gòu),為模式映射提供基礎(chǔ)。 - chapter 3 presents a method to represent schema architecture and schema mapping, prescribe an algorithm for decomposition tree . chapter 4 describes the implementation framework of multidatabase query processing, the implementation algorithm of query decomposition, approaches of query in the cmdatabase will be addressed
第三章提出了多數(shù)據(jù)庫(kù)系統(tǒng)cmdatabase的模式結(jié)構(gòu)及模式映射方法,定義了用于多數(shù)據(jù)庫(kù)查詢(xún)處理的樹(shù)生成算法第四章描述了cmdatabase的全局查詢(xún)處理的查詢(xún)分解算法。
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