Is firebase SQL or NoSQL?

Related questions

1. What is the benefit of Firebase?
2. What is firebase database in Android?
3. Is firebase a database?
4. What is firebase API?
5. Is firebase good for backend?
6. Is Mongodb a firebase?
7. Is firebase free to use?
8. Why should I use firebase?
9. What is Google firebase used for?
10. Why should we use firebase?

Tags

1. #there
2. #schema
3. #database
4. #pairs
5. #combination
6. #other
7. #nosql
8. #mostly
9. #databases
10. #unlike
11. #store
12. #whatever
13. #tables
14. #where
15. #object
16. #columns
17. #firebase
18. #value
19. #inside
20. #restrictions