From b6bdc10eddc1ffb634c60cb3733b311184e2df89 Mon Sep 17 00:00:00 2001
From: manishch7 <144583550+manishch7@users.noreply.github.com>
Date: Thu, 22 May 2025 14:26:46 -0400
Subject: [PATCH 1/2] DONE SQL 2 : Problem 1, Problem 2

---
 Problem1.sql | 3 +++
 Problem2.sql | 8 ++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 Problem1.sql
 create mode 100644 Problem2.sql

diff --git a/Problem1.sql b/Problem1.sql
new file mode 100644
index 0000000..dedbb7d
--- /dev/null
+++ b/Problem1.sql
@@ -0,0 +1,3 @@
+SELECT score , 
+DENSE_RANK() OVER(ORDER BY score DESC) as "rank" 
+FROM Scores ;
\ No newline at end of file
diff --git a/Problem2.sql b/Problem2.sql
new file mode 100644
index 0000000..3e57c5c
--- /dev/null
+++ b/Problem2.sql
@@ -0,0 +1,8 @@
+SELECT 
+CASE 
+    WHEN id = ( SELECT MAX(id) FROM Seat ) AND MOD(id,2) = 1 THEN id
+    WHEN MOD(id,2) = 1 THEN id + 1
+    ELSE id - 1 
+END as "id", student
+FROM Seat
+ORDER BY id ;
\ No newline at end of file

From f9b3c9966513bfa2c86d21bf2db2f082b037d01e Mon Sep 17 00:00:00 2001
From: manishch7 <144583550+manishch7@users.noreply.github.com>
Date: Mon, 26 May 2025 15:55:17 -0400
Subject: [PATCH 2/2] SQL2 Done

---
 Problem3.sql | 6 ++++++
 Problem4.sql | 8 ++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 Problem3.sql
 create mode 100644 Problem4.sql

diff --git a/Problem3.sql b/Problem3.sql
new file mode 100644
index 0000000..2e44fea
--- /dev/null
+++ b/Problem3.sql
@@ -0,0 +1,6 @@
+SELECT id,
+CASE WHEN p_id IS NULL THEN 'Root'
+WHEN id IN (SELECT p_id FROM Tree WHERE p_id IS NOT NULL) AND p_id IS NOT NULL THEN 'Inner'
+ELSE 'Leaf'
+END as 'type'
+FROM Tree
\ No newline at end of file
diff --git a/Problem4.sql b/Problem4.sql
new file mode 100644
index 0000000..835fcbb
--- /dev/null
+++ b/Problem4.sql
@@ -0,0 +1,8 @@
+WITH CTE AS ( SELECT d.name AS Department, e.name AS Employee, e.salary AS Salary,
+DENSE_RANK() OVER ( PARTITION BY d.name ORDER BY e.salary DESC ) AS 'rnk'
+FROM Employee e
+LEFT JOIN Department d ON d.id = e.departmentId 
+GROUP BY Department, Employee)
+
+SELECT Department, Employee, Salary FROM CTE
+WHERE rnk < 4
\ No newline at end of file