Overview of Data Extraction,Transformation and Loading
Ying Pei · 2011
Data extraction,transformation and loading are crucial steps of data warehousing,which influences data qua-lity of data warehouse intensively.With the development of informationization,ETL has already become one of most popular research fields,but till now,ETL theory and technology are still not mature.As to the problems and factors appeared in ETL research,many research methods and achievements were listed according to the main problems existed in each ETL phase.Finally,several future research trends of ETL and some proposals for the future research work were summarized and presented respectively.