The scenario
Designing an ERD for a retail inventory ETL pipeline that extracts raw data into staging, transforms it into a star schema with dimensions and facts, and tracks batch metadata.
What is in this drawing
Read the decisions behind it.
01
Star schema with fact and dimension tables
02
Staging table for raw data before transformation
03
ETL batch log for load metadata tracking
When modeling the data flow and schema of an ETL process in retail or similar domains, this diagram outlines the key entities and relationships.
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