AI engineering glossary · Data engineering

What is snowflake schema?

Snowflake schema: A variation of the star design in which dimension tables are broken into further related tables to remove repetition, for example splitting product into category and brand. It saves space but needs more joins.

Level: advancedTopic: Data engineering

Snowflake schema: an example

A product dimension links to a separate category table instead of repeating category names in every product row.

Related terms

More Data engineering terms

Where you learn it

Snowflake schema is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

Before you go

Take the cheat sheet with you

One free PDF: the key AI-engineering terms, formulas and Python idioms. No spam; unsubscribe any time.