From c9f4030cba43d631bfbd5d6324d84259e445cf8a Mon Sep 17 00:00:00 2001
From: thinkasany <480968828@qq.com>
Date: Mon, 30 Oct 2023 13:38:50 +0800
Subject: [PATCH] feat: update sql solution to lc problem: No.2020

---
 .../2020.Number of Accounts That Did Not Stream/README.md     | 4 ++--
 .../2020.Number of Accounts That Did Not Stream/README_EN.md  | 4 ++--
 .../2020.Number of Accounts That Did Not Stream/Solution.sql  | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README.md b/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README.md
index 3e7d9f320def3..22a968d5fefe2 100644
--- a/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README.md	
+++ b/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README.md	
@@ -90,10 +90,10 @@ Streams table:
 
 ```sql
 # Write your MySQL query statement below
-SELECT COUNT(DISTINCT sub.account_id) AS accounts_count
+SELECT COUNT(sub.account_id) AS accounts_count
 FROM
     Subscriptions AS sub
-    LEFT JOIN Streams AS ss ON sub.account_id = ss.account_id
+    LEFT JOIN Streams USING (account_id)
 WHERE
     YEAR(start_date) <= 2021
     AND YEAR(end_date) >= 2021
diff --git a/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README_EN.md b/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README_EN.md
index 65264c2c28c2d..b10b11491611e 100644
--- a/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README_EN.md	
+++ b/solution/2000-2099/2020.Number of Accounts That Did Not Stream/README_EN.md	
@@ -87,10 +87,10 @@ User 11 did not subscribe in 2021.
 
 ```sql
 # Write your MySQL query statement below
-SELECT COUNT(DISTINCT sub.account_id) AS accounts_count
+SELECT COUNT(sub.account_id) AS accounts_count
 FROM
     Subscriptions AS sub
-    LEFT JOIN Streams AS ss ON sub.account_id = ss.account_id
+    LEFT JOIN Streams USING (account_id)
 WHERE
     YEAR(start_date) <= 2021
     AND YEAR(end_date) >= 2021
diff --git a/solution/2000-2099/2020.Number of Accounts That Did Not Stream/Solution.sql b/solution/2000-2099/2020.Number of Accounts That Did Not Stream/Solution.sql
index fae1d28d0721b..5def4ac299ea2 100644
--- a/solution/2000-2099/2020.Number of Accounts That Did Not Stream/Solution.sql	
+++ b/solution/2000-2099/2020.Number of Accounts That Did Not Stream/Solution.sql	
@@ -1,8 +1,8 @@
 # Write your MySQL query statement below
-SELECT COUNT(DISTINCT sub.account_id) AS accounts_count
+SELECT COUNT(sub.account_id) AS accounts_count
 FROM
     Subscriptions AS sub
-    LEFT JOIN Streams AS ss ON sub.account_id = ss.account_id
+    LEFT JOIN Streams USING (account_id)
 WHERE
     YEAR(start_date) <= 2021
     AND YEAR(end_date) >= 2021