SQL Case Studies
Real-world examples of advanced SQL techniques and optimization strategies.
Customer Cohort Analysis
Using window functions and CTEs to analyze customer retention and behavior over time.
Sales Performance Dashboard
Building analytical views with complex aggregations and time-based calculations.
Inventory Optimization
Using lag/lead functions to predict stock levels and optimize purchasing decisions.
Fraud Detection Patterns
Identifying suspicious patterns using statistical functions and outlier detection.
Query Performance Tuning
Real-world examples of optimizing slow-running queries in production systems.
Data Quality Assessment
Using SQL to profile data quality, identify anomalies, and ensure data integrity.