Python - Create SQLAlchemy model 'Student' with fields

Python SQLAlchemy: Exercise-1 with Solution

Write a Python program to create a SQLAlchemy model 'Student' with fields: 'id', 'studentname', and 'email'.

Sample Solution:


from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
# Create a SQLite in-memory database
engine = create_engine('sqlite:///testdatabase')
# Create a base class for declarative models
Base = declarative_base()
# Define the Student model
class Student(Base):
    __tablename__ = 'students'    
    id = Column(Integer, primary_key=True, autoincrement=True)
    studentname = Column(String, nullable=False)
    email = Column(String, nullable=False)
# Create the table in the database
# Create a session to interact with the database
Session = sessionmaker(bind=engine)
session = Session()
# Add a new Student to the database
new_student = Student(id=15,studentname='Zhv Twibfnc', email='[email protected]')
# Query and print all Students from the database
result = session.query(Student).all()
for Student in result:
    print(Student.id, Student.studentname, Student.email)
# Close the session


15 Zhv Twibfnc [email protected]

The above exercise shows how to use SQLAlchemy's ORM, models, sessions and querying to interact with a database without writing raw SQL, in a Pythonic way.


Flowchart: Delaying Print Output with asyncio Coroutines in Python.

Previous: Python SQLAlchemy Exercises Home.
Next: Python Program: Add new records to database table.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

Follow us on Facebook and Twitter for latest update.