Switching tables

Hi, I have tables

product

Workshop

Data A

Data B

and  I use Direct Query.

I have relation Data A- workshop, Data A- product , I have also created many measures in Data A set,

I would like to switch  data A with data B.  It is table with the same parameters , but it has different values. 

 I  don´t want to create - Relations, measures , if it will be possible.

Maybe I will have many different datasets  , so I would like to avoid doing  it again and again.