What is Data Lake?
A centralized repository that stores raw data in its native format at any scale.
A data lake is a centralized storage repository that holds vast amounts of raw data in its native format (structured, semi-structured, and unstructured) until needed for analysis. Unlike data warehouses that require schema-on-write, data lakes use schema-on-read, offering flexibility in how data is processed. They support diverse workloads including batch processing, real-time analytics, and machine learning. However, without proper governance, data lakes can become 'data swamps' where data is disorganized and unusable.
Related terms
A decentralized data architecture that treats data as a product owned by domain teams.
A searchable inventory of all data assets in an organization with metadata, lineage, and access information.
The framework of policies, processes, and standards for managing data assets across an organization.
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