If you do not have permission to create MySQL database through PHPMyAdmin and its show - "No privileges" after clicked on Database Menu, To be set permission on PHPMyAdmin configuration file.

Before that, we need to give "grant all"  permisson for the MySQL users,

Open PHPMyAdmin configuration file "config.inc.php"

# /etc/phpMyAdmin/config.inc.php

/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'cookie';
/* Server parameters */
$cfg['Servers'][$i]['host'] = 'localhost';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = false;
$cfg['Servers'][$i]['AllowNoPassword'] = flase;

Change the last line set to "true"

$cfg['Servers'][$i]['AllowNoPassword'] = true;

Finally, restart your MySQL server,
​# service mysqld restart
Redirecting to /bin/systemctl restart  mysqld.service

Then, Logout and Login again into PHPMyAdmin page.