MySQL查看当前用户

mysql> select current_user();
+----------------+
| current_user() |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.06 sec)

mysql> select current_user;
+----------------+
| current_user |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.00 sec)

mysql> select user();
+----------------+
| user() |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.00 sec)