README.md

Overview

This notebook is intended to provide a non-comprehensive introduction to SQL and relational database concepts.

Specifically, it was created to show a person with some technical background but no familiarity with SQL everything needed to construct queries to address use cases like:

• Given a table of event logs associated with users, I need to see events triggered by a specific set of users
• Given a table of event logs associated with users, I need the set of users assocaited with a specific event recorded during a given period of time

To address these use cases, the document will cover:

• Basic relational database structure
• SELECTing columns from a table
• ORDERing and LIMITing column data
• GROUPing and aggregating column data
• Filtering results to show only columns WHERE the value matches one or more criteria, including being IN a given list
• JOINing tables together

Setup

1. Install JupyterLab if you haven't already
2. Clone this repo
3. Install other dependencies: pip install -r requirements.txt
4. Start the notebook: jupyter-lab SQLBasics.ipynb

Viewing the notebook

Best viewed in (be patient, it will take a while for this link to fully load!)