A distributed database: These are databases of local work-groups and departments at regional offices, branch offices, manufacturing plants and other work sites. These databases can include segments of both common operational and common user databases, as well as data generated and used only at a user’s own site.
An end-user database: These databases consist of data developed by individual end-users. Examples of these are collections of documents in spreadsheets, word processing and downloaded files.
The external database: This contains data collected for use across multiple organizations, either freely or via subscription. The Internet Movie Database is one example of this type of database.
Hypermedia databases: The world wide web can be thought of as a database, albeit one spread across millions of independent computing systems. Web browsers process this data one page at a time, while web crawlers and other software provide the equivalent of database indexes to support search and other activities.
Finally there are operational databases, which store detailed data about the operations of an organization. They are typically organized by subject matter, process relatively high volumes of updates using transactions. Essentially, every major organization on Earth uses such databases and examples include customer databases that record contact, credit, and demographic information about a business' customers and personnel databases that hold information such as salary, benefits and skills data about employees.