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A database management system, or DBMS, gives the user access to their data and helps them transform the data into information. Such database
management systems include dBase, Paradox, IMS, and Oracle. These systems allow users to create, update, and extract information from their
databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility.
A database is a structured collection of data. Data refers to the characteristics of people, things, and events. Oracle stores each data item in its own field. For example, a person's first name, date of birth, and their postal code are each stored in separate fields. The name of a field usually reflects its contents.
A postal code field might be named POSTAL-CODE or PSTL_CD. Each DBMS has its own rules for naming the data fields.
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