Statistical Analysis
A/B Experiment Significance Analysis
Ad Spend and Revenue Statistics
Percentile Analysis of Response Times
Weighted Average Price by Category
Data Cleaning & Preparation
Clean Customer Order Totals with NULL Handling
Analytics Engineering & Pipelines
Customer Feature Table for ML
Top-N Most Recent Events Per User
Type-2 SCD Versioned Load
Advanced Window Functions
Customer Spend Percentile Standing
First and Last Event per Session
Named Window Sales Analytics
Revenue Growth Matrix (YoY, MoM, QoQ)
ROWS vs RANGE Window Frames on Duplicate Dates
Segment Customers into Quartiles by Total Spend
Time Series & Sessionization
Daily Sales Calendar with Recursive CTE
Forward-Fill Sparse Daily Metrics
Sessionize an Event Stream
Pivoting Grouping Sets & Reshaping
Segment Metrics in One Pass
Cohort Funnel & Customer Analytics
Funnel Conversion and Drop-off Analysis
New-Customer 90-Day LTV by Acquisition Cohort
Pareto Cumulative Revenue Share
RFM Customer Segmentation with NTILE