Creating a table based on two tables

Hi,

I have 2 options to you. 

1. Info comming from SQL
   If the info is comming from SQL you can do a union of tables like
   

   SELECT
   ID,
   CODE,
   YEAR
   FROM PREVIOUS
   
   UNION 
   
   SELECT
   ID,
   CODE,
   YEAR
   FROM CURRENT

   Then you will have everthing in the same "table". Then you need to take a visual of columns
   X axis year
   Values Count of difernet codes.
   
   
2. If you have both tables in the PowerBI desktop  you can select in the Edit querys the option of append queries like this link
   http://radacad.com/append-vs-merge-in-power-bi-and-power-query
   After that you will have everthing in one "table" and then you need to do the same than point 1
   
   

Hope this help you