The DBMS is a software tool designed to manage a large number of integrated ,share electronic file cabinets.
DBMS是一種軟件工具,可用來管理許多綜合的、共享的電子“文件柜”。
You describe the type of data you wish to store.
由你來描述要存儲的數據類型,
and the DBMS is responsible for creating the database file(s).
而DBMS則負責建立數據庫文件并提供一種易于使用的機制,
and providing an easy to use mechanism for storing ,retrieving and manipulating the data.
以便對數據存儲、檢索和操縱。
In small businesses, databases may be both created and operated by the user.
在小的企業(yè)中,數據庫可能是由使用者本人建立和操作。
In moderate to large size business with extensive computer systems.
在擁有大量計算機系統(tǒng)的中型到大型企業(yè),
the corporate database is usually created by technical information speciallists, such as the database administrator.
公司數據庫通常是由信息技術專家(如數據庫管理人員)所建立,
but the database management system is acquired by the information systems department.
但數據庫管理系統(tǒng)卻是由信息系統(tǒng)部門所獲得。
Users generate and extract data stored by the database management system.
數據庫管理系統(tǒng)所存儲的數據是由使用者產生并提取。
As with systems analysis and design.
正如系統(tǒng)分析與設計一樣。
to design a database the organization must describe its informational needs to the designers and specify the type of data needed,
為了設計一個數據庫,企業(yè)組織必須向設計者描述其需要,并規(guī)定所需數據的類型。
Users participate heavily in this process of defining what information needs to be stored in the database.
在規(guī)定數據庫需要存儲哪些信息需要的過程中,使用者要參與大量的工作。
Since the early 1980s, tremendous advances have been made in developing database management systems for microcomputers.
自從二十世紀八十年代早期以來,在開發(fā)微型數據庫管理系統(tǒng)方面,已經取得了驚人的進步。
They are now easy enough for users to learn to operate without assistance and powerful enough to produce valuable management information.
在無人幫助下,這種數據庫管理系統(tǒng)極易被使用者學習使用,在產生有價值的管理信息方面,也極為有力。
Regardless of whether you're in a large or a small business ,you cannot afford to do without the capabilities that a DBMS can provide.
無論你是在一個大企業(yè)或小企業(yè)里,如果沒有DBMS提供的作用,你將無能為力。
Notes
注意事項
Regardless of whether you're in a larger or a small business ,you cannot afford to do without the capabilities that a DBMS can provide.
無論你是在一個大企業(yè)或小企業(yè)里,如果沒有DBMS提供的作用,你將無能為力。