From d7435d1e10f8700c7f1de81669969e3c04faa67b Mon Sep 17 00:00:00 2001
From: anton <hortusdev@gmail.com>
Date: Fri, 16 Jan 2026 12:31:08 +0300
Subject: [PATCH] command oreders solve

---
 .../command order/command_order.sql           | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 avysokih/postgresql/command order/command_order.sql

diff --git a/avysokih/postgresql/command order/command_order.sql b/avysokih/postgresql/command order/command_order.sql
new file mode 100644
index 0000000..116fd41
--- /dev/null
+++ b/avysokih/postgresql/command order/command_order.sql	
@@ -0,0 +1,53 @@
+/*Задача 1: Какой будет порядок выполнения у запросов?
+
+SELECT name, age
+FROM users
+WHERE is_active = true AND country = 'Canada'
+ORDER BY age
+LIMIT 3;
+
+*/
+
+1. FROM users
+2. WHERE is_active = true AND country = 'Canada'
+3. SELECT name, age
+4. ORDER BY age
+5. LIMIT 3
+
+ /*
+SELECT country, COUNT(*) AS active_users
+FROM users
+WHERE is_active = true
+GROUP BY country
+HAVING COUNT(*) > 1;
+ */
+
+ 1. FROM users
+ 2. WHERE is_active = true
+ 3. GROUP BY country
+ 4. HAVING COUNT(*) > 1
+ 5. SELECT country, COUNT(*) AS active_users
+
+ /*
+SELECT country, AVG(age) AS avg_age
+FROM users
+GROUP BY country
+HAVING COUNT(*) >= 3 AND AVG(age) > 25;
+ */
+
+ 1. FROM users
+ 2. GROUP BY country
+ 3. HAVING COUNT(*) >= 3 AND AVG(age) > 25
+ 4. SELECT country, AVG(age) AS avg_age
+
+ /*
+SELECT name, age
+FROM users
+WHERE is_active = false AND age > 30
+ORDER BY name;
+ */
+  
+  1. FROM users
+  2. WHERE is_active = false AND age > 30
+  3. SELECT name, age
+  4. ORDER BY name
\ No newline at end of file