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Find the error in the provided SQL query.

SQLmedium0.3 min readPremium

Frequency

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Asked at 1 company

Category

487

questions in SQL

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130E|271M|86H

in this category

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1,863

across 7 categories

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Expert AnswerPremium

59 wordsInterview-ready

**Common errors**: (1) Non-aggregated column in SELECT without GROUP BY. (2) Aggregate in WHERE instead of HAVING. (3) Alias in WHERE (not yet evaluated). (4) NULL in NOT IN. (5) Missing join condition = Cartesian. (6) Division by zero. (7) Type mismatch. **Debug**: Isolate subqueries; EXPLAIN; validate row counts....

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