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SQL Interview Questions (2026)

Practice the most frequently asked SQL interview questions for Data Engineer roles at top companies. Covers ML pipelines, feature engineering, model evaluation, and production trade-offs.

103+ Questions
Hard Difficulty
Top Companies: Google, Amazon, Microsoft
Mock Interview Ready
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Data
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Evaluate
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ML

Top SQL Data Engineer Interview Questions

  1. Technical: SQL: Window functions for deduplication

    Difficulty: Medium

    Representative interview simulation — practice with AI feedback on InterviewForge AI.

  2. Technical: SQL: Indexing for range queries

    Difficulty: Hard

    Representative interview simulation — practice with AI feedback on InterviewForge AI.

  3. Technical: SQL: Normalization vs denormalization

    Difficulty: Medium

    Representative interview simulation — practice with AI feedback on InterviewForge AI.

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SQL Interview Questions (2026) | InterviewForge AI