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071023-ph3-orms's Introduction

SQL Fundamentals and SQLite3 in Python

Learning Goals

  • Python architecture with __init__.py and the Pipfile

  • CRUD using SQL queries

    • CREATE TABLE

    • INSERT INTO

    • SELECT FROM

    • UPDATE SET

    • DELETE FROM

  • The SQLite3 package in Python

  • Sending SQL commands using CURSOR and CONN

  • What is an ORM

  • Building an ORM in Python

Getting Started

Fork and clone. In the terminal run pipenv install followed by pipenv shell. You should be able to debug easily with python3 debug.py. If the ipdb isn't working then remove it and run python3 -i debug.py.

Exercises

Build out the predefined empty methods in the Movie class in movie.py.

BONUS: Create a destroy_by_id class method. When called, it takes in an id as an argument and deletes the row with that id.

BONUS: Create a save() instance method. When called, it will either call the create or the update method depending on whether the instance is already in the database (essentially whether the instance has an id or not).

071023-ph3-orms's People

Contributors

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