Firebase is a real-time object store. It is not a SQL database and is not intended to be a replacement for one. It completely lacks mechanisms such as JOINs, WHERE query filters, foreign keys, and other tools relational databases all provide.

Is firebase SQL or NoSQL?

Architecture: Firebase is a NoSQL database that stores and syncs data in real-time (a real-time document store); MySQL is an open-source relational database management system based on the domain-specific language SQL.

What database does firebase use?

Firebase uses what is known as a NoSQL database for storing data in a Realtime Database. As the name suggest this means that data is not stored in the tables and rows found in relational database management systems (RDBMS) such as Oracle Database or Microsoft SQL Server.