Working on a project to build an HTML5 form within SharePoint that will read and write to a SQL database. Can't find much online about how to get this implemented. I am very well versed in HTML and SharePoint. Just need to know where to start.
I recommend you start with this book, "Inside Microsoft SharePoint 2010".
The first 4 chapters can be read online at MSDN this link: Book landing page: Inside Microsoft SharePoint 2010
There are versions of this book for 2007 and 2013 too.