Update database lesson material (Backend)

[marcorichetta]

Description

• Part of Plan Databases module restructure #6
• Moved content from legacy DB week 2/3 => They are week 1/2 here
• Week 1: Reviewed week 1 content. Updated learning goals, created new assignments
• Week 2: Created new content (Advanced DB functions, security, transactions, deployment)
  • Added materials to trainees' hyf-assigment-template repo to follow along this week session.

Status

• Week 1
  • README
  • Learning goals
  • Preparation
  • Assignment
  • Session-plan
• Week 2
  • README
  • Learning goals
  • Preparation
  • Session-plan
  • Assignment

Database modules overview

Modules in yellow are the ones worked in this PR

Relevant links

• Comments on restrucuring DB content
• https://github.com/HackYourFutureBelgium/sql-database/blob/main/README.md
• @rvedotrc Suggestion related to the databases stuff in particular: As soon as the trainees start the Specialism track, work on getting everyone having a working Docker installation, so that it's then ready for them to use, later on in the track, for the group project

[marcorichetta]

I just pushed it because I had already started locally but will not be working on it now.
Feel free to ask if you want to work on it.

[adamblanchard]

@marcorichetta to:

1. Review outstanding comments and update the PR description with a summary if needed
2. Check where the api code should live (hyf-assignment-repo?)
3. Fix linting and conflicts
4. Share any ideas for missing assignment

I'll create a separate task for the missing assignment after we merge this :)

[rvedotrc]

I think it might be better not to commit this. Yes, it's a portable format, but being binary, it's basically impossible to review it or reason about its contents.

[adamblanchard]

I've removed it, see my final comment below :)

[adamblanchard]

Alright, this is ready from my perspective. I've attempted to make the exercises and their required files clearer.

Required files will now live in the assignment repo HackYourFuture-CPH/hyf-assignment-template#34. The mentor will have to run their demos from here too.

I've removed the binary database "solution" and removed comments suggesting that the trainees can use this if they wish. I believe they should focus on creating a working solution themselves. However, the assignment and week2 builds on this database, so if they're really stuck after the session, then a mentor can recreate a working database from tasks-solution.sql, which is available under "session-materials" and not directly available to trainees.

This module will definitely need testing by mentor(s) before we run it for the first time, since it's very reliant on the materials and files provided.

[adamblanchard]

I'm merging in the name of iteration. If anyone has further feedback/ideas on this module, feel free to raise it.