mysql查询每一天某个时间段的所有记录(例:9:00:00到21:00:00):

SELECT * FROM 表名

WHERE DATE_FORMAT(create_time,'%H:%i:%S')>='09:00:00'

and DATE_FORMAT(create_time,'%H:%i:%S')<='21:00:00'

ORDER BY 排序字段 ASC;

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