From 8796e17c824102c8831736fe1b33d151e3fbca1b Mon Sep 17 00:00:00 2001
From: Nidhi Chauhan <61177315+ni-13@users.noreply.github.com>
Date: Mon, 30 Dec 2024 13:19:45 -0500
Subject: [PATCH] Completed Mock_SQL2

---
 Completed Mock_SQL2 | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Completed Mock_SQL2

diff --git a/Completed Mock_SQL2 b/Completed Mock_SQL2
new file mode 100644
index 0000000..36a57a7
--- /dev/null
+++ b/Completed Mock_SQL2	
@@ -0,0 +1,20 @@
+
+# Customers Who Bought All Products_Solution
+
+SELECT c.customer_id
+FROM customer c
+GROUP BY c.customer_id
+HAVING COUNT(DISTINCT c.product_key) = (SELECT COUNT(p.product_key) FROM product p);
+
+# Product Sales Analysis III_Solution
+
+WITH cte AS
+(
+    SELECT *,
+    RANK() OVER(PARTITION BY product_id ORDER BY year) AS 'rnk'
+    FROM Sales
+)
+
+SELECT product_id, year AS first_year, quantity, price
+FROM cte
+WHERE rnk = 1;