Data fundamentals
Learn the basics of data and databases.
A guide to the data landscape
A guide to the data world for beginners via a tour of the data stack.
9 min read
A short overview of databases
How tables, rows, columns, and keys work together to make a database.
3 min read
Data types and metadata
Why data types matter and how metadata can help you better understand your data.
2 min read
Database table relationships
Understanding how tables in a database can relate to each other.
4 min read
Measures and dimensions
How to work with quantitative and qualitative fields in your queries.
3 min read
Data normalization
What a normalized database looks like and why table structure matters.
7 min read
Types of databases
What to know about different types of database and how they work.
4 min read
Data warehouse vs data lake vs data mart
You'll probably hear these terms thrown around, so here's some context on the differences between a data warehouse, a data lake, and a data mart.
4 min read
Data cubes
Thinking about your data in more than two dimensions.
3 min read