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Extract, Transform, Load (ETL)

What is Extract, Transform, Load (ETL)?

Extract, transform, load (ETL) is a data integration process used to collect data from various sources, transform it into a usable format and load it into a database or data warehouse. ETL is essential in preparing data for analysis and reporting and ensures the data is accurate, consistent and relevant.

For instance, financial data can reside in various systems, like accounting software, CRM platforms, or sales spreadsheets. The ETL process extracts this data from those source systems. The extracted data might not be in a usable format for analysis.

The ETL process then transforms this data into a consistent and standardized format. This may involve cleaning the data, removing errors, and converting currencies if necessary.

Once the data is cleaned and transformed, the ETL process loads it into a central repository, often a data warehouse or data lake. This centralized storage makes it easier for analysts and other users to access and analyze the data for financial reporting, identifying trends, or making data-driven decisions.

This process enables businesses to consolidate data from multiple systems, providing a comprehensive view of operations. Efficient ETL processes are crucial for accurate business intelligence and data-driven decision-making.

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