1、创建一个num表，用来存储数字0~9

CREATE TABLE num (i int);

2、在num表中生成0~9

INSERT INTO num (i) VALUES (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);

3、生成一个存储日期的表，datalist是字段名

CREATE TABLE if not exists calendar(datelist date);

4、生成并插入日期数据

INSERT INTO calendar(datelist) SELECT

adddate(

( -- 这里的起始日期，你可以换成当前日期

DATE_FORMAT("2016-1-1", '%Y-%m-%d')

),

numlist.id

) AS `date`

FROM

(

SELECT

n1.i + n10.i * 10 + n100.i * 100 + n1000.i * 1000+ n10000.i * 10000 AS id

FROM

num n1

CROSS JOIN num AS n10

CROSS JOIN num AS n100

CROSS JOIN num AS n1000

CROSS JOIN num AS n10000

) AS numlist;

5、最后再添加主键即可

ALTER TABLE `calendar`

ADD COLUMN `id` int UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键' FIRST ,

ADD PRIMARY KEY (`id`);