Create 1070-product-sales-analysis-iii.sql

Author: everthis

1070-product-sales-analysis-iii.sql

@@ -0,0 +1,12 @@
+# Write your MySQL query statement below
+select sub.product_id, 
+       sub.first_year, 
+       S.quantity,
+       S.price
+from (select product_id, 
+      min(year) as first_year
+      from Sales
+      group by product_id) sub, 
+      Sales S
+where S.product_id = sub.product_id
+and S.year = sub.first_year