Examples of database system ?

1. MySQL
2. Oracle Database
3. Microsoft SQL Server
4. PostgreSQL
5. MongoDB
6. IBM Db2
7. SQLite
8. Amazon Aurora
9. MariaDB
10. Redis

Relational Database Management Systems (RDBMS)

- MySQL
- PostgreSQL
- Oracle Database
- Microsoft SQL Server
- MariaDB
- IBM Db2

NoSQL Database Management Systems

- MongoDB
- Redis
- Cassandra
- CouchDB
- DynamoDB

Object-Oriented Database Management Systems (OODBMS)

- Objectivity/DB
- Versant Object Database
- db4o
- GemStone

Multidimensional Database Management Systems (MDDBMS)

- Oracle Essbase
- Microsoft Analysis Services
- IBM Cognos TM1

Graph Database Management Systems (GDBMS)

- Neo4j
- JanusGraph
- MongoDB Atlas for Enterprise
- Azure Cosmos DB Gremlin API

Time Series Database Management Systems (TSDBMS)

- InfluxDB
- TimescaleDB
- Prometheus
- ClickHouse

Other Database Systems

- Firebase Realtime Database
- FileMaker Pro
- SQLite
- Apache HBase
- Apache Hive