hi

 

i want to retrieve the Server URL in trigger or in APEX class?

 

Actual my requirement is:

 

i had an object RelatedAttachement. in that Hyperlink field is of URL type. in that i am saving the URL like /servlet/servlet.FileDownload?file=00PR0000000MqVH. For this i want to retrieve the server URL and concatenate that Server URL to this field and updating this field.  in one server it looks like http://cs2.salesforce.com/servlet/servlet.Download?file=00PR0000000MqVH and in another server it looks like http://na2.salesforce.com/servlet/servlet.Download?file=00PR0000000MqVH so for this one i want to retrieve the server URL and i want to concatenate that URL to that field.

 

So please tell me how to retrieve the Server URL in trigger or in APEX class?