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database英文寫作

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關於database的英文寫作,大家看過嗎?下面是本站小編給大家整理的database英文寫作,供大家參閱!

ing-bottom: 133.33%;">database英文寫作
  database英文寫作篇1

I imagine a lot about lives in the future.I think two words can summarize my first word is the future, we will have more quickly transportation matter how far we go, it takes only a short the development of science and technology, we can travel to the moon, Mars or somewhere outer le may can live in other second word is use of the fast development of our society, many work can be done by computers or even of things are fully ns just need to give some simple instructions to complete complecated tasks.

  database英文寫作篇2

A database consists of an organized collection of data for one or more uses,typically in digital way of classifying databases involves the type of their contents,for example:bibliographic,document-text,tal databases are managed using database management systems,which store database contents,allowing data creation and maintenance,and search and other access.

Database architecture consists of three levels,external,conceptual and rly separating the three levels was a major feature of the relational database model that dominates 21st century databases.

The external level defines how users understand the organization of the data.A single database can have any number of views at the external internal level defines how the data is physically stored and processed by the computing rnal architecture is concerned with cost,performance,scalability and other operational conceptual is a level of indirection between internal and provides a common view of the database that is uncomplicated by details of how the data is stored or managed,and that can unify the various external views into a coherent whole.

  Database介紹

Database是按照資料結構來組織、儲存和管理資料的倉庫,它產生於距今六十多年前,隨著資訊科技和市場的發展,特別是二十世紀九十年代以後,資料管理不再僅僅是儲存和管理資料,而轉變成使用者所需要的各種資料管理的方式。資料庫有很多種型別,從最簡單的儲存有各種資料的表格到能夠進行海量資料儲存的大型資料庫系統都在各個方面得到了廣泛的應用。

在資訊化社會,充分有效地管理和利用各類資訊資源,是進行科學研究和決策管理的前提條件。資料庫技術是管理資訊系統、辦公自動化系統、決策支援系統等各類資訊系統的核心部分,是進行科學研究和決策管理的重要技術手段。[1]

資料庫,顧名思義,是存入資料的倉庫。只不過這個倉庫是在計算機儲存裝置上的,而且資料是按一定格式存放的。

當人們收集了大量的資料後,應該把它們儲存起來進行進一步的處理,進一步的抽取有用的資訊。當年人們把資料存放在檔案櫃中,可現在隨著社會的發展,資料量急劇增長,現在人們就藉助計算機和資料庫技術科學的儲存大量的資料,以便能更好的利用這些資料資源。

要是下定義的話,就應該是:指長期儲存在計算機內的、有組織的、可共享的資料集合。

資料庫包含關係資料庫、面向物件資料庫及新興的XML資料庫等多種,目前應用最廣泛的是關係資料庫,若在關係資料庫基礎上提供部分面向物件資料庫功能的物件關係資料庫。在資料庫技術的早期還曾經流行過層次資料庫與網狀資料庫,但這兩類資料庫目前已經極少使用。

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