From 1e2adfc3e94d510fb6dac369ee79b58149827173 Mon Sep 17 00:00:00 2001
From: Aysat <aysat.bakytbek@gmail.com>
Date: Wed, 26 Nov 2025 12:20:41 +0600
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---
 aysat/lifecoding/SQL1.sql | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/aysat/lifecoding/SQL1.sql b/aysat/lifecoding/SQL1.sql
index 667bc05..75ac5d3 100644
--- a/aysat/lifecoding/SQL1.sql
+++ b/aysat/lifecoding/SQL1.sql
@@ -1,3 +1,20 @@
+''' 
+ Задача 1.
+
+Таблица users
+
+| user_id | date       |
+| ---     | ---        |
+| 1       | 2018-07-01 |
+| 234     | 2018-07-02 |
+| 3       | 2018-07-02 |
+| 1       | 2018-07-02 |
+| ...     | ...        |
+| 234     | 2018-10-04 |
+
+Нужно найти ежемесячное процентное изменение месячной аудитории активных пользователей.
+'''
+
 with cte1 as (
 select count(distinct(user_id)) as mau,
 date_trunc('month', date) as month