创建表数据

CREATE TABLE `praise_info` (

`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'ID',

`pic_id` varchar(64) DEFAULT NULL COMMENT '图片ID',

`created_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',

PRIMARY KEY (`id`),

KEY `pic_id` (`pic_id`) USING BTREE

) ENGINE=InnoDB AUTO_INCREMENT=3647 DEFAULT CHARSET=utf8 COMMENT='图片表';

添加数据省略

时间轴前2条数据

SELECT * FROM

(

SELECT *, @num := if(@created_time = DATE_FORMAT(created_time, '%Y-%m-%d'), @num := @num + 1, 1) as row_num,

@created_time := DATE_FORMAT(created_time, '%Y-%m-%d') as axisTime FROM praise_info

order by id desc

) AS temp

WHERE row_num < 3;

原文链接:https://www.cnblogs.com/snail001/p/11194752.html

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