relational database language 中文意思是什麼

relational database language 解釋
關系數據庫語言
  • 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. 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。
  5. 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。
  6. 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。
  7. 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。
  8. 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。
  9. 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） 。
  10. To persistence the objects there are two common approach. one approach is that structured query language ( sql ) codeis embedded in the source code of your classes. the other approach is that sql statements for your business classes are encapsulated in one or more " data classes. " the disadvantage is that it directly couples your business classes with the schema of your relational database, implying that a simple change such as renaming a column or porting to another database results in a rework of your source code

    實現在關系數據庫存取對象，常用的做法有：一種方法是在對象中直接編寫sql代碼來存取對象，另一種方法是將sql代碼在專門的數據類（或存儲過程）中編寫，但著兩種方式都使得對象模型與關系數據庫模式的耦合度大，不容易維護，因為關系數據庫模式的微小改動，都將導致應用程序的重新編譯。
  11. Object oriented database has experienced the phases which are permanent language system, object - relational system and pure object oriented system

    面向對象數據庫系統的發展經歷了持久化面向對象語言系統，對象關系型系統和純面向對象系統等幾個階段。
  12. A mechanism for associating a relational database with its host language. it is used to indicate a record in database to help user fetch them one by one

    一種用以把關系數據庫與其主語言相連接的機制，用它來指數據庫中的某個記錄以幫助用戶逐個取出它們。
  13. The language used for accessing, querying, updating, and managing data in relational database systems. sql is a widely used database language

    本地變量使用declare @ localvariable語句定義，並使用select或set @ localvariable語句在聲明該變量的語句批處理內分配初始值。
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