How to set up relationship between two SQLContainers ?

Vaadin 6 / 7 / 8
1

I have two SQLContainers with the folowing data structure:
SQLContainer
SP
:

FullUserName | tel | room

SQLContainer
MT
:

FullUserName | ComputerName | Domain | OS

In my opinion, the foreign key of the both SQLContainers could be:
“FullUserName”
 field?!

How can i set relation (reference) between these containers to get
the finally view like this:
FullUserName | tel | room | ComputerName | Domain | OS
 ?