Extract, Transform, Load (ETL)

Extract, Transform, Load (ETL) is a process used in data warehousing to manage data from different sources. First, "Extract" gathers data from various locations, like databases and applications. Then, "Transform" cleans and organizes this data, making it consistent and useful, such as converting dates or filtering out errors. Finally, "Load" puts the processed data into a central repository, known as a data warehouse, where it can be easily accessed and analyzed. This process ensures that businesses have accurate and relevant information to make informed decisions.