Introduction to Database
A database is a data structure that stores organized information. Most
databases contain multiple tables, which may each include several different
fields. For example, a company database may include tables for products,
employees, and financial records. Each of these tables would have different
fields that are relevant to the information stored in the table.
Database, also called electronic database, any collection of data, or information, that is specially organized
for rapid search and retrieval by a computer. Databases are structured to facilitate the
storage, retrieval, modification, and deletion of data in conjunction with
various data-processing operations. A database management system (DBMS) extracts
information from the database in response to queries.
Nearly all e-commerce sites
uses databases to store product inventory and customer information. These sites
use a database management system (or DBMS), such as Microsoft Access, FileMaker Pro,
or MySQL as the "back end" to the website. By storing
website data in a database, the data can be easily searched, sorted, and
updated. This flexibility is important for e-commerce sites and other types of dynamic websites.
A database is stored as a file or
a set of files. The information in these files may be broken down into records,
each of which consists of one or more fields. Fields are the basic units of data storage, and
each field typically contains information pertaining to one aspect or attribute
of the entity described by the database. Records are also organized into tables
that include information about relationships between its various fields.
Although database is
applied loosely to any collection of information in computer files, a database
in the strict sense provides cross-referencing capabilities. Using keywords and
various sorting commands, users can rapidly search, rearrange, group, and
select the fields in many records to retrieve or create reports on particular aggregates of data.
The more explanation will be be on this blog soon.
1 comment:
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