Hello everyone, I must make the comparison of two tables, finding the row that does not exist in any of the tables and adding it, this because I am comparing the sales of some products between the current month and the same month last year, due to to which new products have been added, these do not appear in the table of the month of last year or if some products have been eliminated, they do not appear in the current month
DT1
DT2
For example, comparing the two tables, you should add in the dt2 the row Liofilizado with all the values in 0