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A data lake is a data storage location optimized to hold large amounts of raw data at a low cost. The inexpensive, scalable nature of data lakes makes it possible for organizations to store large quantities of data without worrying about high storage expenses. This makes it more cost effective to store unstructured and raw data, giving data teams much more flexibility when it comes to analysis and machine learning. Data lakes can store unstructured data (such as photos, videos, or audio files), structured data (such as relational database files), and semi-structured data, all in one convenient, accessible location.

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Data Lakehouse