relation data model 中文意思是什麼

relation data model 解釋
關系數據模型
  • relation : n 1 說話,敘述,報告;故事。2 關系,聯系;〈pl 〉(利害)關系,交情;〈pl 〉國際關系。3 親戚關系...
  • data : n 1 資料,材料〈此詞系 datum 的復數。但 datum 罕用,一般即以 data 作為集合詞,在口語中往往用單數...
  • model : n 1 模型,雛型;原型;設計圖;模範;(畫家、雕刻家的)模特兒;樣板。2 典型,模範。3 (女服裝店僱...
  1. This thesis firstly introduces new demands of aerial product logistics support under high - tech war and some defects of traditional logistics support, and puts forward a kind of system model of aerial product logistics support following data - sharing of cals, and emphasizes detm. secondly it sets forth application of step and xml in the ietm, researchs conversion of xml schema and relation schema, and simply researchs mapping of xml and express. afterword, a based - xml framework of info - transfer between different platform are presented, according to this framework, the author establish a archetypal system of helicopter information query system based xml and dbms

    本文首先介紹了現代高科技戰爭條件下對航空產品維修保障的新要求,概述了傳統的後勤保障技術的不足,遵循cals的數據共享的理念,提出了航空產品維修保障系統模型,重點研究了互動式電子技術手冊;接著分析了step標準和xml技術在製作互動式電子技術手冊中的應用,重點研究了肌模式和關系模式之間的相互轉換,初步研究了xml和express語言之間的映射關系;然後,提出了基於xml的一種解決航空產品信息跨平臺傳遞的解決方案,給出了該方案的具體實現流程和詳細的通訊協議,並開發了基於xul和數據庫的某型號直升飛機的信息查詢原型系統。
  2. A fuzzy image data model and a concept of fuzzy space are proposed, in which model visual feature, spatial feature and semantic feature are used for super feature in order to utilize advantage of traditional relation database as well as characteristics of image data and fuzzy retrieval. based fuzzy space, a method of similarity measurement of image is presented to support fuzzy features - based image retrieval and satisfy user ' s query requirement for image. in the thesis, a semantic template and the mechanism of dynamic relevant feedback are defined so that it can express user ' s query semantic and improve retrieval precision and useable capability for image retrieval

    研究了模糊檢索方法和相關反饋機制在圖象檢索中的應用,提出了一種模糊圖象數據模型和模糊空間的概念,該模型將可視特徵、空間特徵、語義特徵看作超屬性,既充分利用了傳統關系數據庫的優點,同時又考慮了圖象數據以及模糊查詢的特點,文中提出的模糊空間和模糊相似性度量方法能支持基於模糊特徵的圖象查詢,較好地體現用戶圖象查詢的應用需求,文中定義的語義模板和相關反饋機制能在一定程度上表達用戶的查詢語義,提高圖象檢索的準確率和易用性。
  3. On the basis of the features and fabric of internet data, a new internet data model called tree - vine symbiosis model ( tvm ) is proposed. this model provides precise and flexible description of internet hetarogeneous data. several operations are defined including and, subtract, relation, paste, cut and select, which make search engines analyze, process and query internet resource more precisely and flexibly

    在此基礎之上,提出了一種新的網際網路數據模型? ?樹藤共生模型,該模型能夠較好地的描述異質、異構的網際網路數據資源,並且定義了對象的並、差、關系投影、粘帖、剪切、選擇等操作,這些運算操作使得搜索引擎對網際網路資源進行分析、整理、查詢時具有更高的準確性和更大的靈活性。
  4. The variable intercept fixed effect panel data model set up in this paper based on the financial data between 1997 and 2004 of 34 listed companies in electric power industry has proved that the theoretical analysis of this paper is well founded in that the maturity structure of debt financing has remarkable positive relation with enterprise value ; and that the size of enterprises, the ratio of negotiable share and the shareholding ratio of the first shareholder have significant influence on enterprise value

    本文利用34家電力行業上市公司1997 ~ 2004年的財務數據,通過建立變截距固定效應面板模型,證明企業價值與債權融資期限結構具有顯著的正相關關系,這一結果支持了本文的理論分析;實證結果還表明企業規模、流通股比例、第一大股東持股比例對企業價值具有顯著的影響。
  5. Traditional mixed data model, which manages special data in the form of files and manages attribute data in the form of relation database, is adopted during building special database ( attribute database vector and grid database ) which is the nucleus of the data bank

    數據庫中的核心部分?空間數據庫(屬性數據庫與圖形圖像庫)採用傳統的混合數據模型,以文件的形式管理空間數據,以關系數據庫管理屬性數據。
  6. 5. a mixed data model called relation - level - object, which is used to image retrieval system in flood prevention, is presented in order to satisfy special access requirement for image data and spatial data. with the research results of this dissertation, a prototype system, a content - based engineering image retrieval system, is designed and implemented

    研究了圖象檢索技術在水利行業中的應用,提出了關系?層次?面向對象的混合數據模型,並擴展數據模型以滿足多媒體數據與空間數據的特殊情況,摘要研究了系統實現的具體技術方案,設計並實現了一個用於工情圖象檢索模型系統。
  7. Key algorithm for creating topology relation of three dimension vector data model

    建立三維矢量數據模型拓撲關系的關鍵演算法
  8. The system adopts spatial data model based on the vector data model ; topology relation model uses spatial data model combined with spatial data index ; and makes use of relation database to save spatial entity data

    本系統採用基於矢量數據模型的空間數據模型;拓撲關系模型採用空間數據模型與空間數據索引結合;採用關系數據庫存儲空間對象數據。
  9. Based on the stock exchange, this paper described the approach of conceptual multidimensional data modeling based on multidimensional e / r model in detail, and used it to model the stock exchange subject, then compared it with the existing multidimensional data models. based the applications, this paper described systemically the multidimensional data modeling techniques, and stated classifiedly the main operations used in this technique with formalization means. this paper stated vividly the approach of building the multidimensional data model based on the relation data model

    針對證券行業這樣一個特定背景,在詳細分析基於me r的多維數據概念建模方法的基礎上,運用它對股票交易主題進行了概念建模,同時也把me r模型與常用的多維數據模型進行了對比;根據課題背景,對基於關系數據模型的多維數據建模方法進行了詳細地闡述。
  10. Version management is very important in engineering data management, and is a method to maintain consistency of design data. a notion of design object is proposed, based on which the design information of product is described. the composed relation, version relation, and equivalent relation are used to establish the relation design object. a version mechanism is established in the paper for engineering data management. a hierarchical model of design object is proposed. some notions such as version history of design object, relations of version history of design object, and so on are proposed. a data model of version mechanism is established. finally, the operation ( check in / check out, selection of current version, dynamic configuration of version and so on ) of version object is analyzed

    版本管理是工程數據庫管理中的重要部分,也是保證設計數據一致性的手段.文中提出了設計對象的概念,以設計對象為基礎組織和描述完整的產品設計信息,建立了設計對象之間的組合聯系、等價聯系以及版本聯系,提出了設計對象的層次模型表示方法.針對工程數據管理的特點建立了其版本機制,提出了設計對象版本歷史、對象版本之間的聯系等概念,研究了設計對象的版本操作檢入/檢出、當前版本的選擇以及版本的動態配置等主要內容
  11. At present, the data warehouse systems is more built on the relation database, so the star schema simulates the expression and memory of multidimensional data model by the relation model, for improving visit efficiency

    星型模型是數據倉庫的數據模型設計一個補充部分,目前數據倉庫系統多建在關系數據庫之上,所以星型模型是由關系模型模擬多維數據模型的表示和存儲,提高了數據倉庫訪問效率。
  12. In view of the engineering practice of chmavc " s assistant materials management information system, this paper discusses some engineering problems relation to the design of a large database and to the application of database technology. exposition of two important aspects - - then design of a large database and improvement of database performance concerning practice is given. it includes the design of a data model, the compress technique of data, indexes set - up, optimization of inquiry, integrity check and security control

    從工程實踐的角度,論述了為實現系統功能而在數據庫設計和軟體結構設計中所採用的方法和技術;並論述了為達到系統性能而在實現中所採取的各項措施,重點討論了大型數據庫的設計和改善數據庫性能這兩個重要方面,內容包括設計數據模型、建立索引、查詢優化、完整檢查和安全控制等。
  13. It also discusses the realization of the system. meanwhile, beginning with the analysis of the need few the system, the thesis draws a data flow diagram, studies the entities and their relation involved in the system and sets up the concept data model. then it establishes a logic data model and opens up the managing system of the automatic storage & retrieval system d atabase supporting the internet structure of the client / database server by using sql server 2000 database system

    同時,從啤酒自動化倉庫管理系統需求分析入手,畫出系統的數據流圖,研究系統所涉及的實體以及實體之間的關系,建立概念數據模型,再建立邏輯數據模型,最後採用sqlserver2000數據庫系統開發了支持客戶機服務器網路結構的啤酒自動化倉庫管理系統數據庫,為倉儲作業的實現和庫存管理提供數據存儲方面的支持。
  14. Xrdbm improves xml - dbms at following aspects : the consistency maintaining method during transforming semi - strctured data model into relation model, the maintenance of xml document and the problem of different subelements with the same name, etc. based on xrdbm, the author proposes an algorithm of xml publishing to deal with the input sql statements and generate valid xml document for the certain dtd automatically, named valid xml generating from sql ( vxg - sql )

    Xrdbm對xml - dbms進行了如下改進和完善,包括dtd生成關系模式中常見的子元素重名、 xml文檔在關系數據庫中的維護、關系模式和半結構化模型之間映射的一致性維護方法等。在xrdbm基礎之上,作者設計並實現了根據sql語句自動生成符合dtd 、滿足一致性約束的xml文檔的演算法vxg - sql 。
  15. An approach of transferring newcom data model to relation data model

    模型到關系模型的轉換機制研究
  16. According to the demands, the structure of the database has been designed : defining data, defining table, building relation data model and designing the data structure

    按照任務的目的和要求,設計了其數據庫系統結構:定義數據、表、創建數據關系模型及設計數據結構。
  17. And how to build a data warehouse system based on miss, how to build a multidimensional data model based on relation data model attract human ' s general attentions. on these situations, this paper concluded the concept, motive, basic techniques, key problems and the present situation of researching of multidimensional data modeling seriously

    本文基於這樣一個現實背景,對多維數據建模的概念、目的、基本方法、關鍵技術、國內外研究現狀進行了深入地歸納總結;對基於關系數據模型的多維數據建模方法進行了系統總結,並用形式化方法對其主要操作進行了分類描述。
  18. It took the model driven as software developing pattern, and started at the mapping between relation data model, and supported by mof and mda, and referenced frame technic, and provided the resolvent of existing in information system and improved the efficiency of information system developing and keeping

    本課題採取模型驅動的軟體開發模式,以關系數據模型之間的映射為研究出發點,以mof 、 mda為整體理論支撐,參考框架技術,為信息系統中存在的一些問題提供了解決方法,在很大程度上提高信息系統開發和維護效率。
  19. Based on the research of the basic theory of erp and the characteristic of dockyard - enterprise running model, faced the orientation of ve, the research gives the dockyard - enterprise ' s general erp design case and the dockyard - enterprise ' s business and data model, according to the relation of enterprise business. it takes the thinking of system engineering to devise the core subsystem, subsystem ve oriented and aided subsystem. in the end, this paper studies and demonstrates yiu lian crm system and describes its function, software architecture, its database design and interface design

    論文以香港友聯船廠有限公司為背景,在研究erp基本原理的基礎上,面向虛擬企業的發展方向,針對修船企業的運營管理模式的特點,從企業的業務關系入手,給出了該修船企業的erp系統總體解決方案、修船企業的業務流、數據流模型,並運用系統工程的思想劃分了核心子系統、面向虛擬企業的子系統及輔助子系統和模塊。
  20. Firstly, considered both the function of the flood prevention information system and the practice of the management of drainage, the development process and technology of the flood prevention information system has been detailed discussed. secondly, one universal object - oriented geographic data model, which is according with the management of drainage, has been constructed. thirdly, the corresponding database and their relation has been constructed

    從防汛信息服務系統產生的背景和功能出發,結合排水防洪管理的具體情況,詳細闡述了防汛信息服務系統的研製步驟與開發技術,建立了符合排水防洪管理特點的面向對象地理數據模型、數據庫及其相互關系,並利用空間分析技術實現了相關信息的地理化,開發了實用的大慶油田防汛信息服務系統。
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