Comparing two date ranges within the same table

Question

I have a table with sales per store as follows:

SQL> select * from sales;

        ID ID_STORE DATE       TOTAL
---------- -------- ---------- -----------         


        

Answer 1

I think the problem is in your join condition. I haven't tested it but I think you could try sth like

... ON (    sales.id_store = sales2.id_store 
        AND sales.date = ADDDATE(sales2.date, INTERVAL 1 YEAR) 
        ...
       )