How many databases do we have?

What are the 3 types of database?

Types of Databases1) Centralized Database. It is the type of database that stores data at a centralized database system. ... 2) Distributed Database. ... 3) Relational Database. ... 4) NoSQL Database. ... 5) Cloud Database. ... 6) Object-oriented Databases. ... 7) Hierarchical Databases. ... 8) Network Databases.

What are top 10 databases?

Which is best Database for web applications In 2022?The Oracle. Oracle is the most widely used commercial relational database management system, built-in assembly languages such as C, C++, and Java. ... MySQL. ... MS SQL Server. ... PostgreSQL. ... MongoDB. ... IBM DB2. ... Redis. ... Elasticsearch.

What are the 6 types of database?

Let us explain all of them:Centralised Database. The information(data) is stored at a centralized location and the users from different locations can access this data. ... Distributed Database. ... Personal Database. ... End User Database. ... Commercial Database. ... NoSQL Database. ... Operational Database. ... Relational Databases.

What are the 4 types of database model?

Types of database models Hierarchical database model. Relational model. Network model. Object-oriented database model.