feat: add sql solution to lc problem: No.1097 (#1089)

No.1097.Game Play Analysis V

Author: yanglbme

.prettierrc

@@ -17,6 +17,7 @@
                 "solution/0600-0699/0610.Triangle Judgement/Solution.sql",
                 "solution/0600-0699/0618.Students Report By Geography/Solution.sql",
                 "solution/0600-0699/0626.Exchange Seats/Solution.sql",
+                "solution/1000-1099/1097.Game Play Analysis V/Solution.sql",
                 "solution/1000-1099/1098.Unpopular Books/Solution.sql",
                 "solution/1100-1199/1113.Reported Posts/Solution.sql",
                 "solution/1100-1199/1174.Immediate Food Delivery II/Solution.sql",

solution/1000-1099/1097.Game Play Analysis V/README.md

@@ -66,7 +66,26 @@ Result 表：
 ### **SQL**
 
 ```sql
-
+# Write your MySQL query statement below
+WITH
+    t AS (
+        SELECT
+            player_id,
+            event_date,
+            min(event_date) OVER (PARTITION BY player_id) AS install_dt
+        FROM Activity
+    )
+SELECT
+    install_dt,
+    count(DISTINCT player_id) AS installs,
+    round(
+        sum(if(datediff(event_date, install_dt) = 1, 1, 0)) / count(
+            DISTINCT player_id
+        ),
+        2
+    ) AS day1_retention
+FROM t
+GROUP BY install_dt;
 ```
 
 <!-- tabs:end -->

solution/1000-1099/1097.Game Play Analysis V/README_EN.md

@@ -66,7 +66,26 @@ Player 2 installed the game on 2017-06-25 but didn't log back in on 2017-06-
 ### **SQL**
 
 ```sql
-
+# Write your MySQL query statement below
+WITH
+    t AS (
+        SELECT
+            player_id,
+            event_date,
+            min(event_date) OVER (PARTITION BY player_id) AS install_dt
+        FROM Activity
+    )
+SELECT
+    install_dt,
+    count(DISTINCT player_id) AS installs,
+    round(
+        sum(if(datediff(event_date, install_dt) = 1, 1, 0)) / count(
+            DISTINCT player_id
+        ),
+        2
+    ) AS day1_retention
+FROM t
+GROUP BY install_dt;
 ```
 
 <!-- tabs:end -->

solution/1000-1099/1097.Game Play Analysis V/Solution.sql

@@ -0,0 +1,20 @@
+# Write your MySQL query statement below
+WITH
+    t AS (
+        SELECT
+            player_id,
+            event_date,
+            min(event_date) OVER (PARTITION BY player_id) AS install_dt
+        FROM Activity
+    )
+SELECT
+    install_dt,
+    count(DISTINCT player_id) AS installs,
+    round(
+        sum(if(datediff(event_date, install_dt) = 1, 1, 0)) / count(
+            DISTINCT player_id
+        ),
+        2
+    ) AS day1_retention
+FROM t
+GROUP BY install_dt;