Does Firebase have a SQL database?

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. … But any attempt to treat it “like” a SQL replacement is going to fail.

Read more

What is Realtime Database Flutter?

The Firebase Realtime Database is a cloud-hosted database . Data is stored as JSON and synchronized in realtime to every connected client. When you build cross-platform apps Flutter & Firebase, all of your clients can share one Realtime Database instance and automatically receive updates with the newest data.

Read more