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sql-portfolio

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MYusril0354 / barbershop-customer-analysis

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SQL portfolio project analyzing 2,000 barbershop customer visits — customer segmentation, retention/churn, service revenue mix, and Pareto analysis using window functions, CTEs, and conditional aggregation in SQLite.

sql sqlite exploratory-data-analysis business-intelligence data-analytics data-analysis cte portfolio-project customer-segmentation rfm-analysis customer-analytics churn-analysis retention-analysis window-functions pareto-analysis data-analyst-portfolio sql-portfolio
  • Updated Jul 12, 2026
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