text: -- creates the database (This code is based on the schema.png img provided in assignment and provided README file)
  DROP DATABASE IF EXISTS synergyEmployees;
  CREATE DATABASE synergyEmployees;
  USE synergyEmployees;
  
  -- creates the department table in the synergyEmployees database and adds id and department_name columns 
  CREATE TABLE department (
      id INTEGER PRIMARY KEY AUTO_INCREMENT,
      department_name VARCHAR(50) NOT NULL
  );
  
  -- creates the role table in the synergyEmployees database and adds id, title, salary and department_id columns 
  CREATE TABLE role (
      id INTEGER PRIMARY KEY AUTO_INCREMENT,
      title VARCHAR(50) NOT NULL,
      salary DECIMAL(12, 2) NOT NULL,
      department_id INTEGER
  );
  
  -- creates the employee table in the synergyEmployees database and adds id, first_name, last_name, role_id, and manager_id and department_name columns 
  CREATE TABLE employee(
      id INTEGER PRIMARY KEY AUTO_INCREMENT,
      first_name VARCHAR(50) NOT NULL,
      last_name VARCHAR(50) NOT NULL,
      role_id INTEGER,
      manager_id INTEGER
  );