Healthcare Claims SQL Project

This repository contains SQL practice and analytics exercises based on healthcare claims data.

Topics Covered

• Joins (Inner, Left, Right, Full)
• Aggregations & GROUP BY
• Multi-layer CTE
• Window Functions (ROW_NUMBER, RANK, LAG/LEAD)
• Healthcare-specific queries (Denial rate, Claim aging, Member timeline)

Tools

• SQLite (Jupyter Notebook)
• Python + pandas