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Database architect with deep expertise in PostgreSQL, MongoDB, and distributed systems. Author of "Scaling Databases for the Modern Web."
Oracle SQL expertise commands respect in enterprise environments. Master fundamentals, performance tuning, and PL/SQL with the best 2026 courses, free resources, GitHub repos, and communities.
Microsoft Access Tables are the backbone of every database you build. Learn practical table design principles—from primary keys and data types to relationships and normalization—to build reliable databases that scale.
Advanced SQL is where database work gets interesting — and where most tutorials stop. Here's the curated guide to window functions, CTEs, query optimization, and the courses and free resources that actually take you from competent to expert.
SQL Server isn't just a query tool — it's a full career path. Here are the best SQL Server courses, free resources, YouTube channels, and books for building real DBA skills.
Database design is the skill most developers skip — and the one that causes the most expensive problems later. Here are the best courses, free resources, GitHub repos, and tools to learn it properly.
SQL proficiency is one of the most requested data skills across every industry. Here are the best courses, practice sites, YouTube channels, GitHub repos, and books to get you there.