customers_who_bought_all_products.sql

stackcats · stackcats · commit 08983fe2bc60 · 2025-09-07T13:14:14.000+08:00
diff --git a/database/medium/customers_who_bought_all_products.sql b/database/medium/customers_who_bought_all_products.sql
@@ -0,0 +1,7 @@
+-- Write your PostgreSQL query statement below
+SELECT customer_id
+FROM Customer
+GROUP BY customer_id
+HAVING COUNT(DISTINCT product_key) = (
+    SELECT COUNT(1)
+    FROM Product)
