sqlalchemy और pandas के साथ क्वेरियाँ चलाना

import pandas as pd
import sqlalchemy

# Create a connection to the reviews database
db_engine = sqlalchemy.____("postgresql+psycopg2://repl:password@localhost:____/____")

# Execute a query against the nested_reviews table
results = pd.____("SELECT * FROM nested_reviews;", ____)
print(results)