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当月 第一天:
select date_add(date_add(last_day(now()),interval 1 day),interval -1 month);
当月最后一天:
select last_day(NOW());
应用:查询当月的 创建 用户
SELECT
*
FROM
user
WHERE
CREATE_TIME BETWEEN date_add(
date_add(
last_day(now()),
INTERVAL 1 DAY
),
INTERVAL - 1 MONTH
)
AND last_day(NOW());