What are the best databases to use for android development?

Question

Android

1. What databases are the most relevant for android development in 2020?
2. What databases should an android junior developer be able to use?
3. How to determine which database to use for your application? Let's say there is SQLite, Firebase, etc., so how can I understand in which cases it is better to use SQLite and in which another?

Answer 1

Firebase is the cloud. SQLite - locally (file system).
And then slowly. They should not be on the main workflow.
Therefore, before working with databases, from my point of view, you need to understand
1) life cycles.
2) Multi-threaded work. Asynchrony.
Feeling all the pain You will already understand that it is difficult to live like this.
Read about what was invented to remove it.
And here is your first question, only in a slightly different wording. Not the databases themselves,
but what architectural approach and specific high-level wrapper is in demand
. And understanding the basics (what's under the hood) will make it easier to master the already popular one.
You will understand what these abstractions and additional layers are for