Meaning of ETL

Simple definition

ETL stands for Extract, Transform, Load. It is a process used to gather data from various sources (Extract), modify it into a usable format (Transform), and then store it in a central database or data warehouse (Load).

How to use ETL in a professional context

In data management, ETL is essential for consolidating data from different systems into a single location. This allows businesses to analyze and report on the data in a consistent, structured way.

Concrete example of ETL

A retail company might use ETL to gather sales data from multiple locations (Extract), convert the currency to a single format (Transform), and load the data into a central data warehouse for analysis.