<ul data-eligibleForWebStory="true"><li>A user has completed StrataScratch's Advanced SQL 25 Questions, highlighting it as a challenging but rewarding experience that enhanced analytical and problem-solving skills.</li><li>The user maintained progress in a Notion database, documenting the questions, their sources, and solutions, offering to share a template for others to duplicate.</li><li>Acknowledgment was given to Frederik Müller for inspiration, leading the user to undertake this journey, and gratitude expressed to StrataScratch for providing the invaluable resource.</li><li>Key learnings from the challenge encompass advanced window functions, recursion, complex joins, and query optimization, facilitating growth and learning in the data field.</li></ul>

StrataScratch's Advanced 25 Hard SQL Questions

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