How to rename the Domain Name

You can rename the domain name in Plesk using the following steps:
1) go to MySql prompt.
2) give following commands:
use psa;
Under this database there is a table called "domains" in which all the domain name are present under the field "display Name", all you have to do is update the record of the domain in issue to the new one.
The update query for MySql will be as follows:
UPDATE domains SET display Name='New Domain Name' WHERE age='old Domain name';
After this query check the domain in Plesk and it will be renamed.
Alternative Solution :
Here is the solution.
Go to control panel.
click on domain name.
click on Domain Administration option.
Enter the new domain and click ok.
The domain will be renamed.