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What is Extract, Transform, Load?

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Extract, Transform, Load, commonly known as ETL, is a class of tools used for data migration and as a operational tool for loading data warehouses or performing data integration between applications. As the term suggests, ETL are used to connect to data sources, parse and transform data. In many cases, ETL engines are designed for high performance and commonly handle extremely large volumes of data.
Overview: ETL Definition
Type
Data Integration
Definition
A class of tools for connecting to data sources, parsing and transforming data.
Common Uses
Loading data warehouses
Data migration
Application data integration
Related Concepts
Data Integration
Enterprise Service Bus
Data Virtualization
Data Federation
Data Transformation

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