Advanced SQL Interview Questions – Big 4 Level

SQL interviews at top consulting firms aren’t about basic queries — they’re designed to test how you think, not just what you know.

This carefully curated collection of Advanced SQL Interview Questions mirrors the style and difficulty level used by Big 4 companies. These problems go beyond textbook SQL and push you to master:

• Complex joins

• Common Table Expressions (CTEs)

• Window functions

• Real-world analytical thinking

• Structured problem-solving approaches

Each question is crafted to challenge your logic, sharpen your query design skills, and strengthen your confidence for high-stakes interviews.

Whether you're preparing for Big 4, product companies, or data roles, this resource helps you build the depth of understanding interviewers actually look for.

If you’re serious about SQL…

If you want to stand out…

If you’re ready to think like an analyst…

👉 Start the challenge now.