Calculating row count from two across different tables

Hello, i have a sql script that works fine when running in sql database. The scripts looks like this.

SELECT
A.Code,
count ( i.[ID])
FROM [ServingDB].[dbo].[Table_A] A
inner join Table_B B
on A.regnumber = B.regnumber and A.Number = B.Number
group by A.Code
order by A. Code desc

Now i want to implement the same logic in Powerbi ? How do i do it?