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Learn the most common SQL mistakes that hurt developers in interviews and on the job. From missing indexes to SQL injection vulnerabilities, avoid these pitfalls to advance your career.
A comprehensive SQL quick reference covering SELECT queries, filtering, JOINs, aggregations, subqueries, CTEs, window functions, and data manipulation commands for daily use.
Learn what vector databases are, how they work under the hood, and why they're essential for AI applications. Understand embeddings, similarity search, and when to use vector databases vs traditional SQL.