Context: CREATE TABLE countries (country_name VARCHAR, country_id VARCHAR); CREATE TABLE departments (department_id VARCHAR, location_id VARCHAR); CREATE TABLE locations (location_id VARCHAR, country_id VARCHAR); CREATE TABLE employees (employee_id VARCHAR, department_id VARCHAR)
Question: Find employee with ID and name of the country presently where (s)he is working.
Answer: SELECT T1.employee_id, T4.country_name FROM employees AS T1 JOIN departments AS T2 ON T1.department_id = T2.department_id JOIN locations AS T3 ON T2.location_id = T3.location_id JOIN countries AS T4 ON T3.country_id = T4.country_id