4 курс 1 семестр / Лабораторные / Python / LR7_6

import psycopg2

connection = psycopg2.connect(database="students",
user="postgres",
password="123",
host="127.0.0.1",
port="5432")
cursor = connection.cursor()

query = """
SELECT e.first_name AS employee, m.first_name AS boss
FROM public.employees e
JOIN public.employees m ON e.manager_id = m.employee_id
"""

cursor.execute(query)
result = cursor.fetchall()

for row in result:
print(row[0], "is managed by", row[1])

cursor.close()
connection.close()