How to query today's data in mysql

Mysql method of querying today’s data: [SELECT * FROM `order` WHERE TO_DAYS(order_time) = TO_DAYS(NOW())].

Create a table:

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CREATE  TABLE  ` order ` (
   `id`  INTEGER  UNSIGNED  NOT  NULL  AUTO_INCREMENT,
   `order_name`  VARCHAR (45)  NOT  NULL ,
   `order_time` DATETIME  NOT  NULL ,
   PRIMARY  KEY  (`id`)
)

Query the data of the current day (today)

SELECT  *  FROM  ` order `  WHERE  TO_DAYS(order_time) = TO_DAYS(NOW())

Query the data of yesterday

SELECT  *  FROM  ` order `  WHERE  TO_DAYS(NOW()) - TO_DAYS(order_time) = 1

Query the data of the current month (this month)

SELECT * FROM `order` WHERE DATE_FORMAT(order_time, '%Y%m') = DATE_FORMAT(CURDATE(), '%Y%m')

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