Step 1: Login to your cPanel account.
Step 2: Select phpMyAdmin option under Databases.
Step 3: Select the database that you wish to copy to another.
Step 4: Select the option operation on the top of that page.
Step 5: Click the copy database option in operation tab.
Step 6: In the copy-database field, enter the new database name.
Step 7: Finally click Go button to copy the database.
Step 8: You have successfully copied database and displayed in the list.