data mart

noun

The access layer of a data warehouse environment, used to distribute a subset of the data to users.

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Meanings

noundata mart (plural data marts)

plural data marts · alternative datamart

  1. The access layer of a data warehouse environment, used to distribute a subset of the data to users.

    One of the issues of data warehouses and data marts is how data gets from the data warehouse to the data mart. Data in the data warehouse is very granular. Data in the data mart is very compact and summarized.

    2002 [1991], W. H. Inmon, Building the Data Warehouse, 3rd edition, John Wiley & Sons, →ISBN, page 142

Origin

Following the metaphor of a data warehouse.

Full word history & related roots →
Cite this entry
APA

data mart. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/data%20mart

MLA

“data mart.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/data%20mart. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “data mart,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/data%20mart.

Source: data mart on Wiktionary, CC BY-SA 4.0.