diff --git a/Customers Who bought all products.sql b/Customers Who bought all products.sql
new file mode 100644
index 0000000..e51f5ac
--- /dev/null
+++ b/Customers Who bought all products.sql	
@@ -0,0 +1,5 @@
+SELECT c.customer_id
+FROM Customer c
+LEFT JOIN product p ON c.product_key = p.product_key
+GROUP BY c.customer_id
+having COUNT(DISTINCT c.product_key) = (SELECT COUNT(p1.product_key) FROM product p1)  
diff --git a/Product Analysis iii.sql b/Product Analysis iii.sql
new file mode 100644
index 0000000..a7d67f0
--- /dev/null
+++ b/Product Analysis iii.sql	
@@ -0,0 +1,5 @@
+
+select s1.product_id, s1.year as first_year, s1.quantity, s1.price
+ from sales s1 
+ where (s1.product_id, s1.year) in ( select s2.product_id, min(s2.year) 
+ from sales s2 group by s2.product_id)
\ No newline at end of file