概念

  • Data Lake:存储原始数据(未加工处理的数据,结构化和非结构化均可)的池子,后续根据具体的用途使用时加工处理;
  • Data Warehouse:存储经过加工处理结构化的数据的仓库;

A data lake is a vast pool of raw data, the purpose for which is not yet defined. A data warehouse is a repository for structured, filtered data that has already been processed for a specific purpose.

区别

  Data Lake存储的原始数据,意味着数据完整没有丢失不限定用途,但是占用存储空间,很适合机器学习的场景; Data Warehouse存储经过处理的结构化数据,意味着存储数据丢失和转变,存储时用途已经明确;

Data Lake VS Data Warehouse

参考:

  1. https://www.talend.com/resources/data-lake-vs-data-warehouse/

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