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This skill provides a unified framework for mastering both document-oriented and relational databases, specifically MongoDB and PostgreSQL. It empowers developers to design efficient data models, write complex SQL queries or aggregation pipelines, and manage production-level tasks like migrations, backups, and performance tuning. By offering side-by-side comparisons and specialized Python utilities, it helps users choose the right architecture for their specific use case while ensuring best practices in security, indexing, and scalability are always followed.
