Search code snippets, questions, articles... Chrome Extension

Create table model using SQLAlchemy

Using SQLAlchemy you can create tables by defining the class schema and then upgrading your database.
from sqlalchemy.orm import declarative_base
from sqlalchemy import Column, Integer, String
from datetime import datetime

Base = declarative_base()

class User(Base):
    __tablename__ = 'users'

    id = Column(Integer, primary_key=True)
    username = Column(String, nullable=False)
    firstname = Column(String)
    lastname = Column(String, nullable=True, default='')
    created_date = db.Column(db.DateTime,

    def __repr__(self):
        return "<User(username='%s', firstname='%s', lastname='%s')>" % (self.username, self.firstname, self.lastname)
Best JSON Validator, JSON Tree Viewer, JSON Beautifier at same place. Check how cool is the tool

In the code snippet, we are creating a table named users and adding columns to it with names - username, firstname, lastnamee, created_date. We can also enable check on columns whether it can be null or not by using nullable and assigning True or False to it. You can also assign a default value to it means if the column does not have a value at the time of insertion then it will be filled with the deafult value.

Was this helpful?
Join Devsheet Ask a Question