SSIS has more advantages when dealing with complex transformation processes involving slow-changing dimensions. They are:
* SSIS is known for managing memory efficiently thereby resulting in much bigger improvements in performance when compared to stored procedures.
* SSIS supports GUI (Graphical User Interface) and helps developers develop complex transformations easily and in a reliable way.]
* SSIS helps in easier interaction with external sources which are particularly useful during data cleansing.
If the ETL (Extract, Transform, Load) process consists majorly of Extract and Load with very little Transform, then Stored Procedures work well because they do not deal with cursors.
