Window Frame Specifications - Control which rows are included in calculations

ORDER BY in Window Functions - Sorting within partitions for rankings and running totals

Advanced Window Functions - NTILE, PERCENT_RANK, CUME_DIST for statistical analysis

Performance Optimization - Indexing strategies and query tuning for window functions

PARTITION BY vs GROUP BY - Deep dive into when to use each approach

Named Windows and WINDOW Clause - Advanced window definition techniques

Create employee rankings within departments using multiple ranking functions

Build a customer analytics dashboard with lifetime value and segmentation

Implement running totals and moving averages for financial reporting

Design a sales performance analysis with multiple partition dimensions

Practice named windows with complex multi-metric calculations

Optimize partition-based queries with proper indexing strategies

Explain PARTITION BY vs GROUP BY with practical examples

How would you optimize a slow query with multiple PARTITION BY clauses?

Design a customer segmentation query using window functions

What are the performance implications of different partition strategies?

How do you handle NULL values in PARTITION BY columns?

When would you use named windows vs inline window specifications?

PostgreSQL Window Functions Documentation - Comprehensive reference

SQL Window Functions Performance Guide - Optimization techniques

Advanced Analytics with SQL - Real-world window function patterns

Database Indexing for Window Functions - Performance best practices

PARTITION BY Case Studies - Industry examples and use cases

Window Function Troubleshooting Guide - Common issues and solutions