Week 24

 Briefly summarize the what you consider to be the three (3) most important things you learned in this course.

The first most important thing I learned is SQL & Relational Databases. Mastering core SQL operations like select, insert, update, delete, and relational concepts like primary/foreign keys.

The second most important thing I learned in Transaction Management & NoSQL. Understanding ACID transactions, concurrency control, and NoSQL systems like MongoDB.

The third most important thing is SQL proficiency. Mastering complex queries like joins, subqueries, aggregates, and managing database structures like tables, constraints, and keys.