/*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