Databases

SQL, NoSQL, query optimization, and data modeling

2 chapters 6 lessons 58 min total

SQL Fundamentals

3 lessons · 32 min
FREE
Relational Databases
Tables, keys, and relationships
10 min FREE
SQL Queries
SELECT, JOIN, GROUP BY, subqueries
12 min
Indexing and Performance
Query optimization techniques
10 min

NoSQL

3 lessons · 26 min
5 credits
Document Databases
MongoDB fundamentals
10 min FREE
Key-Value Stores
Redis for caching and sessions
8 min
When to Use NoSQL
Choosing the right database
8 min