Jerry
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Data Analysis
OLAP (OnLine Analytical Processing)
Database vs Data Warehouse vs Data Lake | What is the Difference?
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Database vs Data Warehouse vs Data Lake | What is the Difference? - YouTube
Parents
Alex The Analyst
Big Data (huge databases)
Data Lakes (2011)
Data Warehousing
ETL (Extract, Transform, Load)
OLAP (OnLine Analytical Processing)
Relational Databases (1970)
Children
DBs for Transactions, DWs for Analysis.
DLs Hold All Your Data
DWs Have Summary Data, Refreshed Periodically