Mysql-SSH连接
用户（test）指定SSH连接Mysql
mysql -u test -p
确认当前连接的数据库（未连接任何DB）
mysql> SELECT database();
+------------+
| database() |
+------------+
| NULL |
+------------+
1 row in set (0.00 sec)
当前可选择数据库列表
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sample_db |
| sys |
+--------------------+
选择数据库
mysql> use sample_db
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
结果确认
mysql> SELECT database();
+------------+
| database() |
+------------+
| sample_db |
+------------+
1 row in set (0.00 sec)