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建立人际资源圈Microsoft_Access
2013-11-13 来源: 类别: 更多范文
Microsoft Access
Microsoft Access
Access is a popular database program that runs in the Windows
environment. This program is generally used to store large quantities of
information, which can be viewed, sorted, manipulated, retrieved and printed
in various ways.
A database is a collection of data related to a particular topic or
purpose. The data in the databases is very valuable resource to any
individual or business. Organizing, storing, manipulating, retrieving and
sorting data are critical activities that enable the information to be found and
used effectively. The information in a database is organized into fields. A
group of related fields is called a record, and a collection of related records
is called a table. To manage databases an individual or a company might
invest in a database management system. This database management system
is a software program that allows databases to be created and then for the
data within them to be manipulated. Most of todays database management
system, including Access, are called relational database management system.
In a relational database management system, data is organized into a
collection of tables, that are related and that can share information. A
relationship between two tables in a relational database management
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