How to join two data tables

Hi Community, 


I have got two data tables. One with product sales over a period of one year and the other Target vlaues for the first three months of  this year. I want help to combine these two data tables in Spotfire and have a series of charts such as 

1. Target vs Revenue

2. Trend of sale of products. 

3. Other target based calculated sheets. 


Kindly help with the joining methods. 


(1) Answer