創建表數據

CREATE TABLE `praise_info` (

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

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

`created_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '創建時間',

PRIMARY KEY (`id`),

KEY `pic_id` (`pic_id`) USING BTREE

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

添加數據省略

時間軸前2條數據

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;

原文鏈接:https://www.cnblogs.com/snail001/p/11194752.html

如有疑問請與原作者聯系

版權申明：本站文章部分自網絡，如有侵權，請聯系：west999com@outlook.com

特別注意：本站所有轉載文章言論不代表本站觀點，本站所提供的攝影照片，插畫，設計作品，如需使用，請與原作者聯系，版權歸原作者所有