This means you can store all of your data without careful design or the need to know what questions you might need answers for in the future.
The structure of the data or schema is not defined when data is captured. Data is cleaned, enriched, and transformed so it can act as the “single source of truth” that users can trust.Ī data lake is different, because it stores relational data from line of business applications, and non-relational data from mobile apps, IoT devices, and social media. The data structure, and schema are defined in advance to optimize for fast SQL queries, where the results are typically used for operational reporting and analysis.
Depending on the requirements, a typical organization will require both a data warehouse and a data lake as they serve different needs, and use cases.Ī data warehouse is a database optimized to analyze relational data coming from transactional systems and line of business applications.
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