Learn what SQL is, why it was created, and how it powers modern databases. Includes examples of tables, queries, and JOINs to help you understand how relational data works in practice.
Learn what npm is, why it’s essential for modern JavaScript development, and how it compares to alternatives like Yarn and pnpm, including performance, disk usage, and real-world examples.
Learn what NoSQL databases are, how they differ from relational databases, popular examples like MongoDB and DynamoDB, and when to use them for your applications.