Go from a business process to a clean fact-and-dimension model without redrawing the Kimball diagram by hand.
Describe your business process or paste source tables and get a Kimball-style dimensional model — fact and dimension tables, grain, keys and the DDL to build it.
Free tier: 3 designs per month · or unlock forever for $4.99
Star schema designed
fct_orders
Grain: one row per order line · measures: quantity, net_amount, discount_amount
Illustrative — designed from your business questions and source tables, with surrogate keys.
Every card is something members actually do inside Datamata — not a vague promise.
Describe what the business measures and get a model built around that grain, not guesswork.
Surrogate keys, foreign keys and conformed dimensions are chosen for you to review.
The CREATE TABLE DDL comes with the model so you are not retyping the schema by hand.
Designs fact and dimension tables with a clearly stated grain
Feature deep-dives
See it work
Describe what the business measures and get a model built around that grain, not guesswork.
Try Star SchemaStar schema designed
fct_orders
Grain: one row per order line · measures: quantity, net_amount, discount_amount
Illustrative — designed from your business questions and source tables, with surrogate keys.
Go deeper
Surrogate keys, foreign keys and conformed dimensions are chosen for you to review.
Browse all premium toolsIn practice
The CREATE TABLE DDL comes with the model so you are not retyping the schema by hand.
Try Star SchemaBuilt for Premium outcomes
Real decisions, not generic templates. Every workflow runs on live market data so your moves are backed by what employers are asking for now.
Designs fact and dimension tables with a clearly stated grain
Picks surrogate keys, foreign keys and conformed dimensions sensibly
Outputs the CREATE TABLE DDL so you can build the model straight away
Quick start guide
Design a model in three steps — describe the business process or sources, set the grain then review the facts and dimensions.
Say what you are measuring and the questions the model needs to answer.
Set what one fact row represents — this drives the whole design.
Check the facts, dimensions and keys then copy the CREATE TABLE statements.
Loading history into a dimension? The SCD Type 2 SQL Generator handles the change-tracking logic.
What's included
Designs fact and dimension tables with a clearly stated grain
Picks surrogate keys, foreign keys and conformed dimensions sensibly
Outputs the CREATE TABLE DDL so you can build the model straight away
Free tier includes monthly designs; Pro unlocks unlimited runs
Start free, upgrade when you need more.
Pro
$9.99/moUnlimited dimensional model designs with full DDL
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