ETL and ELT: A Guide and Market Analysis - KDnuggets

ETL (Extract-Transform-Load) is the most widespread approach to data integration, the practice of consolidating data from disparate source systems with the aim of improving access to data. The story is still the same: businesses have a sea of data at disposition, and making sense of this data fuels business performance. ETL plays a central role in this quest: it is the process of turning raw, messy data into clean, fresh, and reliable data from which business insights can be derived. This article seeks to bring clarity on how this process is conducted, how ETL tools have evolved, and the best tools available for your organization today. Today, organizations collect data from multiple different business source systems: Cloud applications, CRM systems, files, etc.