relational language 中文意思是什麼

relational language 解釋
關 系 語 言
  • relational : adj. 有關系的;親戚的;(特指語法上)表示關系的。adv. -ly
  • language : n 1 語言;(某民族,某國的)國語;語調,措詞。2 (談話者或作者所使用的)言語,語風,文風,文體。3...
  1. The technology of database develops from hiberarchy database, retiform database to relational database, even oo database, that has become to the base of information system. since 90 ' s, as a kind of language of network programming, java makes best use of network resources and it ' s portable, cross - platform, reusable and extendable

    數據庫技術經歷了從層次數據庫、網狀數據庫到關系數據庫以及面向對象數據庫的發展,已成為計算機信息系統中的重要基礎和支柱,並在傳統的商業和事務處理等領域內趨于成熟。
  2. As the rdbms ( relational database system ) can hardly adapt the requirement of non - traditional application, such as incompetence of model representation, low system with a combination of 00 language, sematic, model, complex object and database system. it absorts the merit of the oodbms and the rdbms, it inherit the mature technology of the rdbms, on the other hand, it import the technology of the 00, so it can boost up the ability of handle complex object, etc

    它針對關系數據庫系統( rdbms )不能適應非傳統應用的要求,如:模型表達能力有限,系統效率低、事務模型太簡單等,結合面向對象語言、語義模型、復雜對象模型和數據庫的幾個方面的研究而形成的一個高度數據集成化系統。
  3. We introduce detailly the its design ideal, merit, purpose and sql language and so on, then we discuss the problem of the design and implement of the v - ordbms. compared with other products, now, v - ordbms, which we are designing, is based on the relational database system for windows os, it extends the abstract data type, such as array, set, structure etc, we solve the store and all sorts of sql operation for these extended data type. otherwise, in v - ordbms, we provide the solution of how to realize the store of class, inherit, and the mapping of the relation among classes. etc. it provides the visual environment for using

    對比國外的postgresql , gemstone , 02等產品,目前我們設計的v - ordbms原型系統是基於windowsos的平臺,以關系數據庫為基礎,在支持傳統數據類型的基礎上擴展了抽象數據類型adt ( abstractdatatype ) ,例如數組、集合、結構等,解決了它們的存儲以及相應的各種sql操作,能夠支持復雜對象,所以它的數據類型豐富。
  4. From paris convention to the madrid agreement and lisbon agreement, then trips. the relational language survived transformation from “ indications of source ” to “ appellations of origin ” and “ geographical indication ”. their content also has changed a great deal

    從巴黎公約到馬德里協定和里斯本協定,再到trips協定,相關術語歷經了「貨源標志」 、 「原產地名稱」和「地理標志」的轉變,其內容也發生了很大的變化。
  5. 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

    保留語義約束的xml與rdb雙向靜態數據轉換技術現有研究大多採用dtd ( documenttypedefinition ,文檔類型定義)作為xml的模式描述語言,並且在模式映射過程中丟失語義約束信息,本文分析了xml - schema ( xml - schema採用與dtd完全不同的語法,數據描述能力更強同時也更為復雜,已被w3c確定為替代dtd作為xml模式描述語言的標準)及關系模式的語義約束特徵,通過基於正則樹的xml形式化描述方法以及基於有向圖的一般關系模式表示方法的研究,建立保留語義約束的xml - schema與關系模式的雙向模式映射演算法,實現了xml與rdb的雙向數據轉換,較好地解決了xml與rdb在靜態數據轉換層面的數據集成問題,可有效滿足企業大量rdb數據面向xml的發布以及與日俱增的xml數據存入rdb的應用需求。
  6. An erp system differs from the typical mrpii system in technical requirements such as graphical user interface, relational database, use of fourth - generation language, and computer - aided software engineering tools in development, client / server architecture, and open - system portability

    一個erp系統和典型的mrp系統的區別在技術上,例如,圖形用戶介面,關系數據庫,在開發中使用第4代語言和計算機輔助軟體工程工具,客戶機/服務器體系結構和開放系統的可移植性。
  7. Structured query language. a standard language for querying and modifying relational databases

    結構化查詢語言。一種用於查詢和修改關系數據庫的標準語言。
  8. Secondly, based on the classification of fuzzy set semantics, we give a new definition on data type. thirdly, by new data types, we give a new fuzzy relational database management system ( frdbs ) database language ( dbl ) and a new quotient operator based on the semantics in fuzzy relational database

    利用模糊集合的語義分類,本文提出了一種新的模糊數據類型劃分方法,在此基礎上提出了一種改進的模糊數據庫語言,並提出了一種基於語義的模糊關系除操作和用於數據類型之間進行轉換的上操作和下操作。
  9. The thesis has implemented the datatype model of the air transportation information system database with the objected - oriented relational database oracle9i using the structured query language, loaded the air transportation information into the database and built the view of the database considering the needs of the application

    本文應用面向對象的大型關系數據庫產品oracle9i建立了空中交通管理信息數據庫的數據模型,將空中交通信息導入空中交通管理信息數據庫,同時根據數據庫應用開發的需要建立了應用開發視圖。
  10. The mapping rule from express data schema to relational databases schema is studied. the translation of the different semantic data types of express into the data definition language of sql is discussed. the persistency of step data in relational databases is realized based on an entity instance manager in working form

    論文對express信息模型到關系數據庫模型的映射規則進行了研究,詳細分析了express語言的不同數據類型到sql數據類型的轉化方法,並對內存實現方式的產品數據倉庫的結構、功能進行了研究,闡述了基於關系數據庫的實體實例索引表的建立方法。
  11. This paper tries to examine translation errors from different aspects : referential meaning, specificational meaning, relational meaning, collocation, diction, variety, mood, style, ambiguity, figurative meaning, tone, language interference, etc

    本文從指稱、界定、關系、搭配、選字、變化、語氣、風格、多義性、比喻、基調、原文干擾等各個角度,分析錯誤的翻譯。
  12. The result is likely to be a language with a more complex semantic definition than that of a relational language such as sql

    其結果很可能產生其語義定義比關系語言(如sql )更加復雜的一門語言。
  13. Sql server compact edition is a powerful, yet lightweight relational database engine that makes it easy to develop desktop applications by supporting familiar structured query language syntax and providing a development model and api consistent with sql server

    Sql server compact edition是功能強大又輕巧的關聯式資料庫引擎,可支援常用的結構化查詢語言structured query language , sql語法,並提供與sql server一致的研發模式及api ,因此可便於開發供桌上型電腦使用的應用程式。
  14. Sql server 2005 compact edition is a powerful, yet lightweight relational database engine that makes it easy to develop desktop applications by supporting familiar structured query language syntax and providing a development model and api consistent with sql server

    Sql server 2005 compact edition是功能強大又輕巧的關聯式資料庫引擎,可支援常用的結構化查詢語言structured query language , sql語法,並提供與sql server一致的研發模式及api ,因此可便於開發供桌上型電腦使用的應用程式。
  15. 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

    主題包括:關聯式資料庫、 sql (結構查詢語言) ;資料類型、關聯、關聯式代數、完整性、景觀表;功能依附理論、正規化、語義塑模、實體關聯塑模、概念性資料庫設計;同時操作控制、安全;資料庫與網頁連結、 xml (可擴展標示語言) 。
  16. 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,論文提出了一個概念性數據模型,即時態實體一關系數據模型( ter模型廠提出了一個表示性數扼模型,即gt數據模型及其查詢語言。
  17. The sql language is a very well established standard for retrieving information from relational databases and has recently been enhanced with new facilities called " structured types " that support nested structures similar to the nesting of elements in xml

    Sql語言是一個用於從關系數據庫中檢索信息的穩定標準,並且在最近還增加了名為「結構化類型」的新工具,用以支持類似於xml中元素嵌套的嵌套結構。
  18. Based on the reference feature of object - relational data model and the query language, the join algorithm sort - loops, probe - loops and segment - join are proposed, their performance are analyzed and compared

    針對對象關系數據模型和查詢語言所支持的引用特性,設計了基於引用的連接演算法sort - loops 、 probe - loops以及segment - join 。
  19. This flexible and portable programming model abstracts the data access layer using an object to relational mapping layer and the enterprise javabean query language ejb - ql

    這個靈活且可移植的編程模型使用對象至關系映射層和enterprise javabean查詢語言( enterprise javabean query language , ejb - ql )抽象了數據訪問層。
  20. The relational data model and use of the sql language allows for enterprise level performance and scalability

    關系數據庫模型和sql語言的使用必須考慮到企業級性能和可伸縮性。
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