diff --git a/customers-who-bought-all-products.sql b/customers-who-bought-all-products.sql
new file mode 100644
index 0000000..b4c3384
--- /dev/null
+++ b/customers-who-bought-all-products.sql
@@ -0,0 +1,4 @@
+# Write your MySQL query statement below
+select customer_id
+From (select customer_id , count(distinct(product_key)) as cnt 
+from customer group by customer_id) as s where cnt = (select count(*) from Product);
diff --git a/product-sales-analysis-iii.sql b/product-sales-analysis-iii.sql
new file mode 100644
index 0000000..8a6eb3b
--- /dev/null
+++ b/product-sales-analysis-iii.sql
@@ -0,0 +1,8 @@
+# Write your MySQL query statement below
+With CTE as (
+    select product_id, min(year) as 'first_year' from Sales group by product_id 
+) 
+select s.product_id, s.year as 'first_year', s.quantity, s.price from Sales s 
+join cte on cte.first_year=s.year and cte.product_id=s.product_id;
+
+