A data mart is a purpose-built subset of the data warehouse prepared for one team’s questions. The marketing mart holds customer, order, and campaign tables shaped for marketing use, without the risk tables and logistics feeds the rest of the warehouse carries. Faster queries, simpler models, and a smaller blast radius when something upstream changes.
Also known as
marketing mart; marketing schema
In practice
This is the practical answer to “how fresh is the data that marketing reports on?” If your dashboards query “the marketing schema,” you’re already using a mart; the questions worth asking your data team are how often it refreshes and who owns the definitions.
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