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  • Interview Prep
SQL Core
  • SQL Core Questions
  • Window Functions and Ranking Interviews
  • Join Debugging and Grain Traps
  • CTE and Subquery Tradeoffs
Modeling Design
  • Modeling and System Design Questions
  • Star Schema Interview Drills
  • OLTP vs OLAP Design Drills
  • Metric Layer Design Prompts
Case Studies
  • Case Study Prompts
  • Case Study: Ecommerce KPI Regression
  • Case Study: Insurance Loss Ratio
  • Case Study: SaaS Retention Analysis
Timed Mocks
  • 30-Minute SQL Mock
  • 15-Minute Screen SQL Mock
  • 45-Minute Senior Analytics Mock
Follow Up Drills
  • Edge Cases and Debugging Drills
  • Requirement Change Drills
  • Null, Timezone, and Data Type Pitfalls
  • Explain and Defend Tradeoffs
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Interview Prep

Interview Prep is built to simulate real interview pressure for analytics engineers, data analysts, and data engineers. What this section tr...

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