From 91c1a7f1b04288a58f8b130b4250392b71ac1cb2 Mon Sep 17 00:00:00 2001
From: Paneri Patel <paneripatel@Paneris-MacBook-Pro-6.local>
Date: Thu, 26 Jun 2025 17:10:20 -0400
Subject: [PATCH] Done Mock-SQL-3

---
 MarketAnalysisII.sql  | 17 +++++++++++++++++
 TournamentWinners.sql | 12 ++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 MarketAnalysisII.sql
 create mode 100644 TournamentWinners.sql

diff --git a/MarketAnalysisII.sql b/MarketAnalysisII.sql
new file mode 100644
index 0000000..d9756fd
--- /dev/null
+++ b/MarketAnalysisII.sql
@@ -0,0 +1,17 @@
+'''
+https://leetcode.com/problems/market-analysis-ii/description/
+'''
+
+WITH CTE AS (
+    SELECT seller_id, item_id, RANK() OVER(PARTITION BY seller_id ORDER BY order_date) AS rnk 
+    from Orders
+),
+ACTE AS (
+    SELECT CTE.seller_id, Items.item_brand 
+    FROM CTE
+    JOIN Items ON CTE.item_id = Items.item_id 
+    WHERE rnk = 2
+)
+SELECT Users.user_id AS seller_id, IF(Users.favorite_brand = ACTE.item_brand, 'yes', 'no') AS 2nd_item_fav_brand
+FROM Users
+LEFT JOIN ACTE ON Users.user_id = ACTE.seller_id
\ No newline at end of file
diff --git a/TournamentWinners.sql b/TournamentWinners.sql
new file mode 100644
index 0000000..fb17879
--- /dev/null
+++ b/TournamentWinners.sql
@@ -0,0 +1,12 @@
+'''
+https://leetcode.com/problems/tournament-winners/description/
+'''
+
+SELECT group_id, player_id FROM (SELECT p.player_id, p.group_id, RANK() OVER(PARTITION BY p.group_id ORDER BY 
+    SUM(CASE 
+            WHEN p.player_id = m.first_player THEN m.first_score ELSE second_score
+        END)DESC, p.player_id ASC) AS rnk 
+FROM Players p 
+JOIN Matches m ON p.player_id IN (m.first_player, m.second_player)
+GROUP BY p.player_id, p.group_id) AS intermediate
+WHERE rnk = 1