Structure and Types of Databases
Structure of Databases
Understanding the structure of a database will help you locate and retrieve information more efficiently. The information about each item in a database is called a record. For example, the library's online catalog has a record for each item (each book, journal, newspaper, video, map, etc.) located in the library.
A record is composed of individual elements of information called fields. All the records in a given database are composed of a common set of fields. These fields can be used as access points when searching a database. For example, many databases include common fields such as author, title, subject, publisher, and journal name.
Types of Databases
There are several types of databases. The kind of information contained in a database determines its type. The most common types of databases include:
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