ETL (Extract, Transform, Load)

ETL stands for Extract, Transform, Load, and it refers to a process used in data management. First, data is **extracted** from various sources, like databases or files. Next, it's **transformed** into a suitable format, which might include cleaning it, reorganizing it, or aggregating it, making it more useful for analysis. Finally, the transformed data is **loaded** into a destination system, such as a data warehouse, where it can be easily accessed and analyzed. This process helps businesses make informed decisions based on comprehensive, reliable data.