DATE_FORMAT用法

给定的有一个日期，根据某天/某月查询信息

 <select id="dayList" resultType= "com.pepper.modules.order.entity.ServiceOrder" parameterType="java.lang.String">
        select * from service_order s where  DATE_FORMAT(s.SERVICE_DATETIME, '%Y-%m-%d')= #{date}
    </select>

    <select id="monthList" resultType= "java.util.HashMap" parameterType="java.lang.String">
        select DATE_FORMAT(s.SERVICE_DATETIME, '%Y-%m-%d') as 'day', count(s.id) as count from service_order s
        where DATE_FORMAT(s.SERVICE_DATETIME, '%Y-%m')=#{date} GROUP BY day;
    </select>