Here is a simpler version of the Delete All Script that was posted on 2004-10-07.
Be careful it does what it is supposed to do delete all tables from the current database
For most DBAs, normalization is an understood concept, a bread and butter bit of knowledge. However, it is not at all unusual to review a database design by a development group for an OLTP (OnLine Transaction Processing) environment and find that the schema chosen is anything but properly normalized. This article by Brian Kelley will give you the core knowledge to data model.