标签：使用 mys cat ring mat 日期格 ati ima mysql
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
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")
标签：使用 mys cat ring mat 日期格 ati ima mysql
原文地址：https://www.cnblogs.com/cjw-blogs/p/12893626.html
