How about something that occurs frequently in the business world - loading extenral data from a csv, txt or xls file? And please explain the process of creating the staging table. My requirement may involve a fresh staging table each time (DROP/CREATE or TRUNCATE), or I may want to append data to an existing table.
I'm also interested in learning best practices for the transform stage. Should the initial code load the data "as-is" from the csv and then run a SP to execute the field manipulation and transform logic, or should that logic reside in SSIS code. How does SSIS-centric code remain maintainable and in a central repository (other than msdb)?
Finally, I'm interested in error reporting and correction strategies. If the bulk insert fails on a few rows what is the recommended procedure for identifying and presenting these rows to the user for correction? How should the input file be archived post ETL?
I strongly urge the author to work through a "real world" ETL scenario from an externally sourced CSV file(s), FTP'd into a local server folder, through data load, transformation, error correction and reporting, archival and balancing. This is a fairly standard scenario that all IT professionals confront on a frequent basis.