Reflection on learning SQLite

Since September August, I have been learning SQLite and preparing to read the source code.
But I cannot understand it now,
How can I learn SQLite well?
Why should I read the source code? Why?
How to read? What principles should we follow?
What should I pay attention?

This problem is unclear and will be difficult to follow.

However, I asked a senior student yesterday.

Summary:

Familiar with basic applications,

Focus on its architecture and internal mechanisms;

Read the source code and learn how to compile the code;

In Linux.

Think of this now ....