Dylan Bretz Jr.
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All (2)
case study (1)
cli-tool (1)
data analysis (1)
data engineering (1)
data visualization (1)
database normalization (1)
etl (2)
minecraft (1)
python (2)
rdbms (1)
sql (1)
sqlite (1)

Projects

A collection of completed projects and case studies.


Minecraft Villager Trading Database: System Design and Implementation

minecraft
data engineering
database normalization
rdbms
sql
sqlite
python
etl
cli-tool
In this project, I built a SQLite-based relational database with Python ETL and CLI tools to track, manage, and optimize villager trading in Minecraft. While powerful…
2026-02-20
Dylan Bretz Jr.
13 min

Cyclistic Bike-Share Data Analysis Case Study (Python)

case study
data analysis
data visualization
python
etl
For this case study, I analyzed 12 months of bike-share data from Chicago using Python to understand how different types of customers used bikes differently and what those…
2026-01-19
Dylan Bretz Jr.
24 min
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