Change the method the database is updated
When updating ispc3 the data from the database will be saved and after the update imported again. With this method it's not possible to change database coloumns names or remove some coloumns.
Perhaps this is a good start: http://www.codinghorror.com/blog/archives/001050.html http://secretgeek.net/dbcontrol.asp http://haacked.com/archive/2006/07/05/bulletproofsqlchangescriptsusinginformation_schemaviews.aspx