From 2d1f320315d1600b3e127f370d726e0bec229f91 Mon Sep 17 00:00:00 2001
From: SukeshSrinivas <123338848+SukeshSrinivas@users.noreply.github.com>
Date: Sun, 12 Jan 2025 03:44:22 -0600
Subject: [PATCH 1/2] Done

---
 Problem 2 Game Play Analysis 3.sql                  |  2 ++
 Problem 3 Shortest Distance in a Plane.sql          |  8 ++++++++
 Problem 4 Combile two tables.sql                    |  4 ++++
 ...Customers with strictly Increasing Purchases.sql | 13 +++++++++++++
 Problem1 Game Play Analysis 2.sql                   |  6 ++++++
 5 files changed, 33 insertions(+)
 create mode 100644 Problem 2 Game Play Analysis 3.sql
 create mode 100644 Problem 3 Shortest Distance in a Plane.sql
 create mode 100644 Problem 4 Combile two tables.sql
 create mode 100644 Problem 5 Customers with strictly Increasing Purchases.sql
 create mode 100644 Problem1 Game Play Analysis 2.sql

diff --git a/Problem 2 Game Play Analysis 3.sql b/Problem 2 Game Play Analysis 3.sql
new file mode 100644
index 0000000..a4ea3db
--- /dev/null
+++ b/Problem 2 Game Play Analysis 3.sql	
@@ -0,0 +1,2 @@
+# Write your MySQL query statement below
+SELECT player_id, event_date, SUM(games_played) OVER (PARTITION BY  player_id ORDER BY player_id, event_date ) AS 'games_played_so_far' FROM Activity
\ No newline at end of file
diff --git a/Problem 3 Shortest Distance in a Plane.sql b/Problem 3 Shortest Distance in a Plane.sql
new file mode 100644
index 0000000..62d9bfc
--- /dev/null
+++ b/Problem 3 Shortest Distance in a Plane.sql	
@@ -0,0 +1,8 @@
+# Write your MySQL query statement below
+SELECT 
+     ROUND(SQRT(MIN(POW(p1.x - p2.x, 2) + POW(p1.y - p2.y, 2))),2) AS 'shortest'
+FROM 
+    Point2D p1
+INNER JOIN 
+    Point2D p2
+    WHERE p1.x<>p2.x OR p1.y <>p2.y;
\ No newline at end of file
diff --git a/Problem 4 Combile two tables.sql b/Problem 4 Combile two tables.sql
new file mode 100644
index 0000000..9d40342
--- /dev/null
+++ b/Problem 4 Combile two tables.sql	
@@ -0,0 +1,4 @@
+# Write your MySQL query statement below
+SELECT firstName, lastName, city, state FROM Person 
+LEFT JOIN Address
+ON Person.personId = Address.PersonId
\ No newline at end of file
diff --git a/Problem 5 Customers with strictly Increasing Purchases.sql b/Problem 5 Customers with strictly Increasing Purchases.sql
new file mode 100644
index 0000000..4e7da46
--- /dev/null
+++ b/Problem 5 Customers with strictly Increasing Purchases.sql	
@@ -0,0 +1,13 @@
+# Write your MySQL query statement below
+WITH CTE AS (
+    SELECT customer_id, YEAR(order_date) AS Year, SUM(price) AS TotalPurchase
+    FROM orders
+    GROUP BY customer_id, Year
+)
+SELECT DISTINCT c1.customer_id
+FROM CTE c1
+LEFT JOIN CTE c2
+ON c1.customer_id = c2.customer_id
+   AND c1.Year + 1 = c2.Year
+   AND c1.TotalPurchase < c2.TotalPurchase
+WHERE c2.customer_id IS NOT NULL;
\ No newline at end of file
diff --git a/Problem1 Game Play Analysis 2.sql b/Problem1 Game Play Analysis 2.sql
new file mode 100644
index 0000000..e7ad326
--- /dev/null
+++ b/Problem1 Game Play Analysis 2.sql	
@@ -0,0 +1,6 @@
+# Write your MySQL query statement below
+WITH CTE AS(
+    SELECT player_id, device_id, event_date, rank() OVER (PARTITION BY player_id ORDER BY event_date) AS 'rnk' FROM Activity)
+    
+    SELECT player_id, device_id FROM CTE
+    WHERE rnk = 1
\ No newline at end of file

From adc2344ffc5da0976ffcd81e6bcfec97dddd475d Mon Sep 17 00:00:00 2001
From: SukeshSrinivas <123338848+SukeshSrinivas@users.noreply.github.com>
Date: Sun, 12 Jan 2025 11:38:41 -0600
Subject: [PATCH 2/2] Done

---
 Problem 5 Customers with strictly Increasing Purchases.sql | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Problem 5 Customers with strictly Increasing Purchases.sql b/Problem 5 Customers with strictly Increasing Purchases.sql
index 4e7da46..4c6603e 100644
--- a/Problem 5 Customers with strictly Increasing Purchases.sql	
+++ b/Problem 5 Customers with strictly Increasing Purchases.sql	
@@ -4,10 +4,11 @@ WITH CTE AS (
     FROM orders
     GROUP BY customer_id, Year
 )
-SELECT DISTINCT c1.customer_id
+SELECT c1.customer_id
 FROM CTE c1
 LEFT JOIN CTE c2
 ON c1.customer_id = c2.customer_id
    AND c1.Year + 1 = c2.Year
    AND c1.TotalPurchase < c2.TotalPurchase
-WHERE c2.customer_id IS NOT NULL;
\ No newline at end of file
+GROUP BY c1.customer_id
+HAVING (COUNT(*)- COUNT(c2.customer_id))=1
\ No newline at end of file