評論
打印
Passage
文章
Database Management System
數據庫管理系統
professional Terms
專業術語
administrator n.
管理人
afford vt.
有力
appropriate a.
適當的
cabinet n.
柜，箱
comprehensive a.
綜合性的
corporate a.
集團的，公司的
cross-referenced a.
可相互參照的
extract vt.
提取
folder n.
文件夾
item n.
項目，物品
order v.
定購
participate v.
參與
payment n.
支付（的款項）
picture vt.
描寫
relevant a.
相關的
request n.
請求
sort vt.
分類，排序，揀選
specialist n.
專家
unpaid a.
未付的
A database is a large group of stored, integrated ( cross-referenced )data.
一個數據庫就是一大組存儲起來的、集成的（可相互參照）的數據。
usually organized in files that can be retrieved and manipulated to produce information.
通常它們被組織在文件中，這些數據可以通過檢索與操作變換，以產生信息。
A database management system(DBMS) is a comprehensive software tool that allows users to create.
一個數據庫管理系統（DBMS）是一個綜合性的軟件工具，用戶可以用來建立、
maintain ,and manipulate the database to produce the relevant management information.
維護和操縱數據庫，以便產生有關的管理信息。
By integrated we mean that the file records are logically related to one another so that all data on a topic can be retrieved by simple requests
通過集成（我們所說的集成是指文件記錄邏輯上的彼此關聯起來），從而使得關于某個題目的全部數據，可以通過簡單的請求加以檢索。
The database management systems software represents the interface between the user and the computer's operating system and database.
數據庫管理系統相當于用戶、計算機操作系統和數據庫之間的接口。
Picture a typical corporate office with a desk , chairs ,telephone and a row of file cabinents along the wall.
現在來描繪一個典型的公司辦公室，室內有桌子、椅子、電話及靠墻的一排文件柜。
A wide variety of business data is stored in these cabinets.
在文件柜中，存有品種繁多的各類商業數據。
If the files have been carefully organized and maintained then any piece of data that needs to be retrieved can quickly be located and removed.
如果文件已經進行了仔細發組織與保管，那么任何一條數據，可以很快地找到并取出。
However ,if the data has not been properly filed, some time and effort will be expended to find it.
但是如果數據沒有經過任何合適的存檔，要找到該條數據所花費的時間和精力就會加大。
And ,regardless of how carefully the files have been organized and maintained, you will always need to retrieve related pieces of data.
而且無論文件是經過了多么細心地組織與保管，總需要檢索與該數據有關的部分。
For example ,suppose you need to review the customer files for all invoices for payments due in excess of $2,500 and prepare a simple report.
舉例說，假定你需要檢查超過2，5000美元的全部到期應付款發貨票的顧客文件，并需要準備出一份報告。
