DROP TABLE IF EXISTS diaries;
CREATE TABLE diaries (
id INT PRIMARY KEY AUTO_INCREMENT,
title TEXT,
created_at DATETIME,
KEY (created_at)
) DEFAULT CHARSET UTF8MB4;
INSERT INTO diaries (title, created_at)
VALUES ("clear day", "2012-01-29 21:51:01");
INSERT INTO diaries (title, created_at)
VALUES ("rainy day", "2012-01-30 01:23:45");
INSERT INTO diaries (title, created_at)
VALUES ("cloudy day", "2012-01-31 08:32:10");
SELECT * FROM diaries;
id	title	created_at
1	clear day	2012-01-29 21:51:01
2	rainy day	2012-01-30 01:23:45
3	cloudy day	2012-01-31 08:32:10
SELECT * FROM diaries
WHERE created_at BETWEEN "2012-01-29 00:00:00" AND "2012-01-31 00:00:00";
id	title	created_at
1	clear day	2012-01-29 21:51:01
2	rainy day	2012-01-30 01:23:45
DROP TABLE diaries;
