Change in WHMCS URL

[m24]

Hello. I want to change system & Other URL of WHMCS . My hosting company has set up that URL as Alias i.e Primary domain is cloud2host.in  & alias as ms24hosting.com. Now I want to change URL in WHMCS from ms24hosting.com to cloud2host.in. How can I change? While going through the various topics I found the following relating to change in URL:

Replace http://www.yourdomain.com/whmcs/ with the actual System URL value of your installation:

 

UPDATE `tblconfiguration` SET value ='http://www.yourdomain.com/whmcs/' WHERE setting='SystemURL';
UPDATE `tblconfiguration` SET value = '' WHERE setting = 'SystemSSLURL';
UPDATE `tblconfiguration` SET value = '' WHERE setting = 'AdminForceSSL';

If above Procedure is correct, Can anybody guide me exact syntax because It is giving error ?