What is relational database

Relational Databases are based on relational data models designed to store data in rows & columns and in a tabular format. RDBMS is famous for its SQL (Structured Query Language), and can fit to any tech stack. RDBMS is mostly meant for transactional use cases, OLTP with the ability to process data in milliseconds. A lot of RDMBS are available like MySQL, Postgres, AuroraDB etc.