Databases

Master database fundamentals for building robust applications.

Topics to Cover

SQL Fundamentals — Joins, subqueries, window functions
NoSQL — Document stores, key-value, column-family, graph
Indexing — B-trees, hash indexes, composite indexes
Transactions — ACID, isolation levels, locking
Data Modeling — Normalization, denormalization, schema design
Performance — Query optimization, connection pooling, caching