sql中查询同一列所有值出现的次数

Created2023-12-11|Updated2024-05-03

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https://blog.csdn.net/love_java_cc/article/details/52234889

1	SELECT country as 国家,COUNT(*) as 次数 FROM table3 GROUP BY country

Author: karr

Link: https://bitterteaer.github.io/sql%E4%B8%AD%E6%9F%A5%E8%AF%A2%E5%90%8C%E4%B8%80%E5%88%97%E6%89%80%E6%9C%89%E5%80%BC%E5%87%BA%E7%8E%B0%E7%9A%84%E6%AC%A1%E6%95%B0/

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