Example that shows how to fix the following error
Error – Saving changes is not permitted. The changes you have made require the following tables to be dropped and re-created. You have either made changes to a table that can’t be recreated or enabled the option Prevent saving changes that require the table to be re-created.

More info on http://howtodomssqlcsharpexcelaccess.blogspot.ca/2013/02/ms-sql-how-to-fix-error-saving-changes.html