查看MySQL的默認數據目錄

登錄到數據庫中，執行如下語句：

MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE 'datadir';
+---------------+-----------------+
| Variable_name | Value           |
+---------------+-----------------+
| datadir       | /var/lib/mysql/ |
+---------------+-----------------+
1 row in set (0.00 sec)