From basic queries to advanced PostgreSQL features, master database design, optimization, and real-world patterns.
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SQL is the foundation of data management in virtually every production system. Our guides cover SQL fundamentals including SELECT, JOIN, subqueries, CTEs, and window functions. We go deep into PostgreSQL-specific features: JSONB operations, full-text search, Row Level Security, triggers, and advanced indexing strategies.
Database design is an art and a science. We cover normalization theory, ER diagram design, primary and foreign key strategies, and when to denormalize for performance. Our Supabase guides show how to build full-stack applications with real-time subscriptions, edge functions, and auth-gated data access.
Paste your SQL queries into NexusBro QA for optimization suggestions, N+1 detection, and index recommendations.
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