Recursive CTEs (for hierarchical data)

Materialized CTEs (performance optimization)

Window Functions vs CTEs (when to use each)

Subqueries in FROM Clause (derived tables)

Temporary Tables (when CTEs aren't enough)

Create basic CTE to filter and aggregate data

Write query with 3 chained CTEs building on each other

Rewrite nested subquery as CTEs for readability

Use CTE multiple times in same query (UNION example)

Compare execution plans: CTE vs derived table vs temp table

Build customer segmentation query with multiple CTEs

Create sales performance analysis with regional comparisons

Write complex report using 5+ CTEs in pipeline pattern

What is a CTE and why use it over subqueries?

Are CTEs materialized? How does it vary by database?

Can CTEs reference other CTEs? Give an example.

When would you use temp table instead of CTE?

How do you define multiple CTEs in one query?

What are the performance implications of CTEs?

Explain the difference between CTE and derived table.

Write a query using CTEs to calculate customer lifetime value.

CTE Best Practices and Patterns

CTE Performance: Materialization vs Inlining

Recursive CTEs for Hierarchical Data

When to Use CTEs vs Temp Tables

CTE Optimization Techniques

Common CTE Mistakes and How to Avoid Them

Advanced CTE Patterns for Analytics

Database-Specific CTE Features