Completed MockSQL2

Problem1_CustomerProduct.sql

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+# Write your MySQL query statement below
+
+select customer_id
+#,count(distinct product_key) as productcount
+from customer
+group by customer_id
+having count(distinct product_key) in (select count(product_key)
+from product);

Problem2_ProductAnalysis.sql

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+# 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,c.first_year,s.quantity,s.price
+from Sales s
+inner join cte c on s.product_id=c.product_id 
+where s.product_id=c.product_id and s.year=c.first_year