What is ETL pipelines?

ETL (Extract, Transform, Load) pipelines are a type of data integration that refers to a process used to extract data from various source systems, transform the data into a usable format, and load it into a target data warehouse or other data storage system. ETL pipelines are commonly used to consolidate data from multiple sources into a central repository for reporting and analysis, to cleanse and standardize data for consistency, and to prepare data for downstream applications such as machine learning or business intelligence.