它是特定于安装的，但是如果您使用/var/lib/mysql，则:

It is installation specific, but if you've /var/lib/mysql , then:

• MyISAM表将存储在/var/lib/mysql/databasename/
中的单个文件中
• InnoDB驻留在/var/lib/mysql/ibdata中(除非您使用过innodb_per_table设置，在这种情况下，它的存储方式非常类似于MyISAM表)

• MyISAM tables will be stored in individual files in /var/lib/mysql/databasename/
• InnoDB resides in /var/lib/mysql/ibdata (unless you've used the innodb_per_table setting, in which case it's stored much like for MyISAM tables)