Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE departments (department_id VARCHAR, manager_id VARCHAR); CREATE TABLE employees (department_id VARCHAR, employee_id VARCHAR)
### Question:
get the details of employees who manage a department.
### Answer:
SELECT DISTINCT * FROM employees AS T1 JOIN departments AS T2 ON T1.department_id = T2.department_id WHERE T1.employee_id = T2.manager_id