How do I find out my MySQL URL, host, port and username?

Question

I need to find my MySQL username. When I open the MySQL command line client, it only asks me for my password. I don\'t remember my username. And for connectivity with JDBC, I ne

Answer 1

If you're already logged into the command line client try this:

mysql> select user();

It will output something similar to this:

+----------------+
| user()         |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.41 sec)

In my example above, I was logged in as root from localhost.

To find port number and other interesting settings use this command:

mysql> show variables;

Answer 2

Easiest way is probably using command status; In the output you'll find database, user, host and port:

mysql> status;
--------------
mysql  Ver 8.0.13 for Win64 on x86_64 (MySQL Community Server - GPL)

Connection id:          43
Current database:       mysql
Current user:           user@localhost
SSL:                    Cipher in use is DHE-RSA-AES128-GCM-SHA256
Using delimiter:        ;
Server version:         8.0.13 MySQL Community Server - GPL
Protocol version:       10
Connection:             localhost via TCP/IP
Server characterset:    utf8mb4
Db     characterset:    utf8mb4
Client characterset:    cp852
Conn.  characterset:    cp852
TCP port:               3306
Uptime:                 3 hours 32 min 40 sec

Threads: 3  Questions: 197  Slow queries: 0  Opens: 214  Flush tables: 2  Open tables: 190  Queries per second avg: 0.015
--------------

Answer 3

If you want to know the port number of your local host on which Mysql is running you can use this query on MySQL Command line client --

SHOW VARIABLES WHERE Variable_name = 'port';


mysql> SHOW VARIABLES WHERE Variable_name = 'port';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| port          | 3306  |
+---------------+-------+
1 row in set (0.00 sec)

It will give you the port number on which MySQL is running.

---

If you want to know the hostname of your Mysql you can use this query on MySQL Command line client --

SHOW VARIABLES WHERE Variable_name = 'hostname';


mysql> SHOW VARIABLES WHERE Variable_name = 'hostname';
+-------------------+-------+
| Variable_name     | Value |
+-------------------+-------+
| hostname          | Dell  |
+-------------------+-------+
1 row in set (0.00 sec)

It will give you the hostname for mysql.

---

If you want to know the username of your Mysql you can use this query on MySQL Command line client --

select user();   


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

It will give you the username for mysql.

Answer 4

For example, you can try:

//If you want to get user, you need start query in your mysql:
SELECT user(); // output your user: root@localhost
SELECT system_user(); // --

//If you want to get port your "mysql://user:pass@hostname:port/db"
SELECT @@port; //3306 is default

//If you want hostname your db, you can execute query
SELECT @@hostname;

Answer 5

default-username = root
password = you-know-it-better
url for localhost =  jdbc:mysql://localhost
default-port = 3306

Answer 6

If you don't know the exact variable name use like, as the result may contain more than 500 rows:

mysql> show variables like "%port%";