How to use "Join" function to join the second table directly to the right of the first table?

lwx228

I tried this command to be able to splice, but generated a new table.
dt=dt<<Join(With(d1),By Row Number, Output Table("Join"));

How to use the "Join" function to join the second table directly to the right of the first table without generating a new table.
The table of the image is illustrative and has no practical significance.

 

Thanks!

 

txnelson

Use:

     Tables==>Update