Star schema or wide table: which does this report need?

Every new question from the business means rebuilding the same join again. Something about this table design has to change.

AdvancedRead 5 minDoing: a day8 steps

▶ Start

What you'll have at the end

A written decision, star schema or one wide table, with the reason tied to who actually queries the data

Before you start

You need

A recurring report request from the business, plus the ability to run a query against the real fact and dimension tables, or the raw source data, it would draw from.

Not covered

This is scoped to one new report's own table design, and skips how to migrate an entire existing warehouse from one modeling style to the other.

Leans on

8 steps

Where to go next

One region's number, explained by a sales-cube slice and dice

for slicing an already built star schema down to one region, once the table design itself is settled.

Checked 26 Aug 2026

Part of the Data Analytics cookbook