SQL & Database Mastery

SQL & Database Mastery is the complete guide for developers and data professionals who want to understand databases deeply, not just write basic SELECT statements. This book covers: - SQL fundamentals: SELECT, WHERE, JOIN, GROUP BY, ORDER BY - Advanced queries: window functions, CTEs, subqueries - Database design: normalization, relationships, entity-relationship diagrams - Indexes: how they work, when to use them, and query optimization - Transactions and ACID properties - PostgreSQL deep dive: JSON support, full-text search, arrays - MySQL and SQLite for different use cases - ORMs: SQLAlchemy (Python), Prisma (JavaScript) - Database performance tuning and EXPLAIN plans - NoSQL when to use it: MongoDB, Redis, DynamoDB - Database security and access control