Putting SQL to Work: The TechMart Challenge

In this course you'll work with TechMart's real-world dataset to apply advanced SQL techniques and extract meaningful business insights that drive decision-making. The course begins with industry expert perspectives on data science practices before guiding you through a structured analytical framework that transforms business questions into powerful SQL solutions. Throughout this hands-on experience, you'll clean messy retail data, craft complex queries using window functions and CTEs, optimize query performance, and leverage AI-assisted tools to enhance your workflow. The culminating deliverable—a professional data analysis report—will showcase your ability to navigate the complete analytics lifecycle from initial data exploration to presenting actionable recommendations. Upon completion, you'll be able to: • Transform complex business questions into effective SQL queries that extract actionable insights from retail data • Apply advanced SQL techniques including window functions, CTEs, and optimization strategies to real-world analytical challenges • Develop a comprehensive data analysis report that effectively communicates findings to technical and business stakeholders • Create a professional portfolio piece demonstrating your SQL mastery and analytical problem-solving capabilities

• Apply advanced SQL techniques on real datasets
• Extract meaningful business insights
• Transform complex business questions into effective SQL queries
• Use window functions and CTEs in queries
• Optimize SQL query performance
• Create professional data analysis reports

• Basic computer and internet skills
• Ability to read instructions in English and complete short practice tasks