An intermediate course for practitioners who know Python and SQL and want to use them together for professional data work. Covers database connectivity with psycopg2 and SQLAlchemy, running SQL queries from Pandas, building ETL pipelines, performance optimization, and end-to-end data projects combining both tools. Prerequisites: Python for Data Analysis and SQL Fundamentals. Taught by Dr. Ian Wilkinson. Level: Intermediate. Category: Data & AI. Enroll to access AI-powered lessons, quizzes, live instructor sessions, and a verifiable certificate.