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mysql怎么根据date做年,月,日分组统计查询

时间:2021-07-01 10:21:17 帮助过:48人阅读

使用 YEAR(), MONTH(), DAY() 来获取年月日

SELECT YEAR(application_date) as years, count(1) FROM patent GROUP BY YEAR(application_date) ORDER BY years
-- YEAR(application_date)   获取年份
-- MONTH(application_date) 获取月份
-- DAY(application_date)    获取日

使用 date_format(application_date, '%Y'),可自定义日期格式

SELECT date_format(application_date, "%Y") as year, count(1) FROM patent GROUP BY date_format(application_date, "%Y")

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