What are the different types of database?

There are presently two types. (A) Analytic Databases - read only and used to store archived data for analysis work and (B) Operational Databases - Operational databases - Theseallow you to modify the data (add, change or delete data).

These types of databases are usually used to track real-time information. For example, a company might have an operational database used to track warehouse/stock quantities.