import pandas as pd student = pd.DataFrame({ 'year': ['2018', '2019', '2020', '2021'], 'name': ['a', 'b', 'c', 'd'], 'english_score': [98, 88, 75, 100], 'math_score': [70, 75, 93, 80] }, columns=['year', 'name', 'english_score', 'math_score']) 테스트를 위해 Dataframe를 생성한다. import sqlalchemy from sqlalchemy import create_engine engine = create_engine("postgresql://postgres:postgres@localhost:5432/post..