This is my attempt to improve the performance of propercasing a string of text in SQL server. I have run this against several other "looping constructs" - and it is significantly faster.
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.