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📜  如何在sql代码示例中获取具有多个字段的重复记录

📅  最后修改于: 2022-03-11 15:05:18.839000             🧑  作者: Mango

代码示例4
• SELECT first_name, COUNT (first_name) FROM employees
GROUP BY first_name
HAVING (COUNT(first_name) > 1);