Upload 170

Author: ggeerraarrdd

README.md

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 [![eevveerryyddaayy release](https://img.shields.io/badge/eevveerryyddaayy-v1.3.0-blue.svg)](https://github.com/ggeerraarrdd/eevveerryyddaayy/)
-[![Solved](https://img.shields.io/badge/solved-168-green.svg)](#index)
+[![Solved](https://img.shields.io/badge/solved-170-green.svg)](#index)
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 # SQL Everyday
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 | 167   | [SQL Basics: Raise to the Power](https://www.codewars.com/kata/594a8f653b5b4e8f3d000035)                                                                          | [Solution](solutions/167_sql_basics_raise_to_the_power.md)                              | Codewars    | Easy         | `^` or `POW()`                                                      |
 | 168   | [SQL Basics: Simple UNION ALL](https://www.codewars.com/kata/58112f8004adbbdb500004fe/sql)                                                                        | [Solution](solutions/168_sql_basics_simple_union_all.md)                                | Codewars    | Medium       |                                                                     |
 | 169   | [NPV Queries](https://leetcode.com/problems/npv-queries/description/)                                                                                             | [Solution](solutions/169_npv_queries.md)                                                | LeetCode    | Easy         |                                                                     |
+| 170   | [Game Play Analysis II](https://leetcode.com/problems/game-play-analysis-ii/description/)                                                                         | [Solution](solutions/170_game_play_analysis_ii.md)                                      | LeetCode    | Easy         |                                                                     |
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solutions/170_game_play_analysis_ii.md

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+# SQL Everyday \#170
+
+## Game Play Analysis II
+
+Site: LeetCode\
+Difficulty per Site: Easy
+
+## Problem
+
+Write a solution to report the *device* that is first logged in for each player.
+
+Return the result table in *any order*. [[Full Description](https://leetcode.com/problems/game-play-analysis-ii/description/)]
+
+## Submitted Solution
+
+```sql
+-- Submitted Solution
+WITH cte AS (
+    SELECT
+    player_id
+    ,device_id
+    ,ROW_NUMBER() OVER (PARTITION BY player_id ORDER BY event_date ASC) AS rownum
+FROM Activity
+)
+SELECT
+    player_id
+    ,device_id
+FROM cte
+WHERE rownum = 1
+;
+```
+
+## Site Solution
+
+```sql
+-- LeetCode Solution 
+-- Solution 1: Subquery and multi-value use of the IN comparison operator
+SELECT
+  A1.player_id,
+  A1.device_id
+FROM
+  Activity A1
+WHERE
+  (A1.player_id, A1.event_date) IN (
+    SELECT
+      A2.player_id,
+      MIN(A2.event_date)
+    FROM
+      Activity A2
+    GROUP BY
+      A2.player_id
+  );
+
+-- Site 2: Window functions
+SELECT DISTINCT
+  A.player_id,
+  FIRST_VALUE(A.device_id) OVER (
+    PARTITION BY
+      A.player_id
+    ORDER BY
+      A.event_date
+  ) AS device_id
+FROM
+  Activity A;
+```
+
+## Notes
+
+TBD
+
+## NB
+
+TBD
+
+Go to [Index](../?tab=readme-ov-file#index)\
+Go to [Overview](../?tab=readme-ov-file)