cahtgpt 生成测试数据

建表语句

# CREATE TABLE `data`
# (
#     `id`         bigint(20) NOT NULL      AUTO_INCREMENT,
#     `datetime`   timestamp  NULL          DEFAULT CURRENT_TIMESTAMP,
#     `channel`    int(11)                  DEFAULT NULL,
#     `value`      float                    DEFAULT NULL,
#
#     PRIMARY KEY (`id`)
# )

测试语句

这货竟然知道用存储过程实现,点个赞吧.

-- 生成1000条测试数据的SQL语句
SET @num := 0;
INSERT INTO `data` (`id`, `datetime`, `channel`, `value`)
SELECT @num := @num + 1,
    DATE_SUB(NOW(), INTERVAL FLOOR(RAND() * 365) DAY),
    FLOOR(RAND() * 10),
    ROUND(RAND() * 1000, 2)
FROM `information_schema`.`tables` AS `t1`
CROSS JOIN `information_schema`.`tables` AS `t2`;

-- 返回插入数据的SQL语句
SELECT CONCAT('INSERT INTO `data` (`id`, `datetime`, `channel`, `value`) VALUES (',
    `id`, ', \'', `datetime`, '\', ', `channel`, ', ', `value`, ');')
FROM `data`
ORDER BY `id` DESC
LIMIT 1000;