Database management system components

The contents of a distributed database are distributed across multiple locations. This means content may be stored on different systems that are co-located or geographically distant. However, the database remains unified to the user, i.e. the fact that the database is stored in multiple locations is transparent to the user.

The different components of distributed database are-

Now let us discuss one by one-

Users

There are many users of distributed databases. To them, the fact that the database is spread across multiple locations is transparent, and they view the database as a monolithic construct.

Global Mode

Global mode displays the database. It helps to logically understand the entire database design because the database is not actually stored in any one place and distributed across various systems.

Database module

A database module is a database that stores parts of a database in multiple locations. In a homogeneous distributed database, all these parts contain the same data model, whereas in a heterogeneous distributed database, these parts may have different data models.

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