MySQL subquery above avg #18 — MySQL

Problem

MySQL: MySQL subquery above avg #18

Hints

Use MySQL docs syntax for LIMIT and functions

Your practice code

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Solution

-- MySQL sample schema
CREATE TABLE employees (
  id INT AUTO_INCREMENT PRIMARY KEY,
  name VARCHAR(100) NOT NULL,
  dept_id INT,
  salary DECIMAL(10,2),
  hired DATE
);
CREATE TABLE departments (id INT PRIMARY KEY, name VARCHAR(50));
INSERT INTO employees (name, dept_id, salary, hired) VALUES
  ('Ali', 1, 90000.00, '2020-01-15'),
  ('Sara', 2, 120000.00, '2019-06-01'),
  ('Raj', 1, 75000.00, '2021-03-20');
INSERT INTO departments VALUES (1,'Engineering'),(2,'Sales');
SELECT name, salary FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);

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Explanation

MySQL-specific syntax: LIMIT, AUTO_INCREMENT, ENGINE=InnoDB, DELIMITER for procedures.