By mistake, I have created a duplicate database in the phpMyAdmin page of cPanel. I want to delete this database, but I am not able to find any delete button in the UI.
database_name -> Operations -> Remove database -> click on drop the database (DROP)
There are two ways for delete Database
You can delete the database in Cpanel.
In Cpanel go to databases and there you will see all created databases and you can delete this database.
http://docs.cpanel.net/twiki/bin/view/AllDocumentation/CpanelDocs/MySQLDatabases#Delete a Database
or other wise on live server if user have privileges you can run command in sql tab of phpmyadmin.
drop database databasename;
Follow the following steps to delete database in PhpMyAdmin.
Hope this helps.
How to delete a database in phpMyAdmin?
From the Operations tab of the database, look for (and click) the text Drop the database (DROP)
.
Go to operations tab for the selected database and click "Drop the database (DROP)" to delete it.