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Elements of database::

What elements comprise a database? This article deals mainly with the objects that comprise a database. Several concepts are worthy of coverage within the scope of the database as it relates to database design. As you work with data and databases, you will see how the origination of business information and databases is formulated into database elements. The intent here is to provide a brief coverage of basic database elements to provide you with a basic understanding of the elements found in a database.

Several topics are discussed in the following sections. These topics include:

The database schema

Schema objects

Indexes

Tables

Fields and columns

Records and rows

Keys

Relationships

Data types

Database Schema