着重号：` `
SELECT * FROM `ORDER`;
mysql> SELECT * FROM `ORDER`; +----------+------------+ | order_id | order_name | +----------+------------+ | 1 | shkstart | | 2 | tomcat | | 3 | dubbo | +----------+------------+ 3 rows in set (0.00 sec)
MySQL8着重号 ` `
顺，不妄喜；逆，不惶馁；安，不奢逸；危，不惊惧。--史记