This project visualizes retail sales performance using Tableau. Data is analyzed using PostgreSQL, and insights are presented via an interactive dashboard.
- PostgreSQL (SQL analysis)
- Tableau (visualization)
- Python (CSV cleaning, optional)(skip this step as the csv file in the folder is already cleaned.)
View it here → Superstore Dashboard on Tableau Public
- What are the monthly sales trends?
- Who are the top 10 customers by revenue?
- Which product categories are most/least profitable?
- How do discount levels impact profit?
- What are the regional performance differences?
- Profit decreases drastically when discounts exceed 30%
- Technology category leads in both revenue and profit
- The West region dominates in total sales
- Top 10 customers contribute over 20% of total revenue
- Optimal discount ranges: 0.1–0.2, beyond that losses increase
All queries are in /sql/analysis_queries.sql.