Flask WebDev with Advanced Data & Session Management Part 1

In this instructional video, we delve into the fundamentals of databases and their crucial role in web development. We begin by explaining what databases are and their importance, using real-world examples like Shutterfly to illustrate the use of both relational and non-relational databases.

We then explore the different types of databases, including flat files, NoSQL, and SQL databases, highlighting their specific use cases and benefits. The video also provides a comprehensive introduction to SQL (Structured Query Language), detailing how it facilitates data management in relational databases through commands like SELECT, WHERE, and JOIN.

Additionally, we discuss the concept of Object-Relational Mapping (ORM), explaining how ORMs bridge the gap between object-oriented programming and database management, and the advantages and potential drawbacks of using ORMs in development.

Finally, we introduce CRUD operations (Create, Read, Update, Delete) essential for dynamic web applications, and discuss sessions and user authentication, emphasizing the importance of maintaining state in web interactions. The video concludes with a step-by-step guide on setting up a simple web application using Flask, SQLAlchemy, and implementing a survey feature with database interactions.

This video is part of our series aimed at teaching middle school students the basics of web development and programming, focusing on practical applications and hands-on learning.

0:00 Introduction
00:32 What is a Database?
03:28 What is SQL?
05:48 What is an ORM?
09:36 What is CRUD?
10:43 What are Web Sessions
11:37 Create New App Folder
12:50 Code for app.py


Explainer Videos Partially Used Within This Video:
   • What is a database in under 4 minutes  
   • SQL Explained in 100 Seconds  
   • Prisma, Eloquent, Doctrine: Why Use a...  
   • 01. What is CRUD  
   • Session vs Token Authentication in 10...