ASELECT * FROM order_info_table where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(create_time)
BSELECT * FROM order_info_table WHERE create_time = DATE_FORMAT(CURDATE(),'%Y%m')
CSELECT * FROM order_info_table WHERE DATE_FORMAT(create_time,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m')
DSELECT * FROM order_info_table WHERE DATE_FORMAT(create_time,'%m') = DATE_FORMAT(CURDATE(),'%m')