ETL

What is ETL?

ETL is the process of extracting, transforming and loading data from various sources into a target system, such as a data warehouse. The abbreviation ETL stands for Extract, Transform and Load.

ETL is an important part of data integration and Business Intelligence. It makes it possible to bring data from different systems into a unified structure that is suitable for analysis and reporting.

What do the individual parts of ETL mean?

Extract – getting the data

In the first phase, data is extracted from source systems. These can be, for example, ERP, CRM, accounting applications, databases or files.

Transform – transforming the data

The data is then processed, cleaned, unified and adjusted according to the required rules. This phase can include, for example, format conversions, data checks, calculations or unification of code lists.

Load – loading the data

In the final phase, the processed data is stored in the target system, such as a data warehouse, from which it can be used for reporting and analysis.

Why is ETL important for reporting?

Data in individual company systems often has a different structure and format. ETL makes it possible to unify this data and prepare it for further processing. With an automated ETL process, reports can be updated regularly without the need for manual export and editing of data. Reporting.cz uses ETL to process data from source systems and prepare it for reporting, analysis and visualization.