Have you experience designing database structures and defining their architectural solutions?

Yes, I have experience designing database structures and choosing architectural solutions. I usually start with analyzing data requirements and business logic, then:

• Define main entities and their attributes.
• Design relationships between tables (one-to-one, one-to-many, many-to-many).
• Choose data types considering optimization for size and speed.
• Address normalization issues to eliminate redundancy.
• Implement indexes if necessary to speed up queries.
• Consider scaling options and backup strategies.

For example, for a project with users and their orders, I created users and orders tables, linking them via the foreign key user_id in the orders table.

CREATE TABLE users (
    id SERIAL PRIMARY KEY,
    username VARCHAR(50) NOT NULL,
    email VARCHAR(100) NOT NULL
);

CREATE TABLE orders (
    id SERIAL PRIMARY KEY,
    user_id INT REFERENCES users(id),
    order_date TIMESTAMP NOT NULL
);

This approach ensured data integrity and query convenience.