---

​SELECT
​SELECT * FROM customers;
​SELECT name, email FROM users;
​WHERE
​SELECT * FROM employees WHERE salary > 50000;
​SELECT * FROM products WHERE price BETWEEN 100 AND 500;
​SELECT * FROM employees WHERE department IN ('IT', 'HR');
​SELECT * FROM employees WHERE last_name LIKE 'John%';
​SELECT * FROM users WHERE phone IS NULL;
​ORDER BY salary DESC
​SELECT * FROM orders LIMIT 5;
​SELECT DISTINCT city FROM clients;
​SELECT * FROM employees WHERE salary > 60000 ORDER BY name;
​SELECT * FROM products WHERE product_name LIKE '%Premium%';
​SELECT * FROM employees WHERE department <> 'Sales';