Exploring B and B+ Trees

[Techi11]

I'm looking at file structure in databases, especially B and B+ trees. I'm having trouble understanding these concepts, therefore I'm looking to you for help.

-- Example of file structure using B and B+ trees in DBMS
CREATE TABLE Employee (
    id INT,
    name VARCHAR(50),
    PRIMARY KEY (id)
);

I'm not looking for a quick fix; I want to really grasp how file structure works in databases with B and B+ trees. As I read this post, could you explain these principles in clearer terms? What are some frequent errors to avoid, and how may B and B+ trees be used efficiently to organize data?

Your comments and examples would be really helpful in better understanding this issue. Let's work together to organize files in databases!