What is the difference between a data lake and a data warehouse?
A data lake and a data warehouse are two different approaches to managing and storing data.
A data lake is an unstructured or semi-structured data repository that allows for the storage of vast amounts of raw data in its original format. Data lakes are designed to ingest and store all types of data — structured, semi-structured or unstructured — without any predefined schema. Data is often stored in its native format and is not cleansed, transformed or integrated, making it easier to store and access large amounts of data.
A data warehouse, on the other hand, is a structured repository that stores data from various sources in a well-organized manner, with the aim of providing a single source of truth for business intelligence and analytics. Data is cleansed, transformed and integrated into a schema that is optimized for querying and analysis.
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