If you have an ID column with sequential numbers but some values are missing, write a query to find the missing numbers.

If you have an ID column with sequential numbers but some values are missing, write a query to find the missing numbers.

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: intellipaat, sql, topic-specific, sql, database

参考答案摘要

-- Find missing Employee_id values in sequence SELECT (e.Employee_id + 1) AS missing_id FROM Intellipaat _Emp e WHERE (e.Employee_id + 1) NOT IN ( SELECT Employee_id FROM Intellipaat_Emp ); copy

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