Question

describe what ETL (Extraction, Transformation, and Load) stands for. Solomon (2015) classified ETL technologies into four categories. Mention these four categories and describe them succinctly. Finally, why is the ETL process so important for data warehousing efforts?

Answer 1

Answer:

Scheduled data integration, or ETL, is an important aspect of warehousing because it consolidates data from multiple sources and transforms it into a useful format

Explanation:

ETL are three separate but crucial functions combined into a single programming tool that helps in preparing data and in the management of databases. Extract, Transform, Load each denotes a process in the movement of data from its source to a data storage system, often referred to as a data warehouse