In this screencast of my series I explain at a very basic level how to integrate a data base to pull data for autocomplete queries. Since we have been working with neo4j at this time I used a neo4j data base. It will be only in the next two parts of this series where I introduce an efficient way of handling the data base (using the context listener of the web server) and building fast indices. So in this lesson the resulting auto complete service will be really slow and impractical to use but I am sure for didactic reasons it is ok to invest 7 minutes for a rather bad design.
Anyway if you want to use the same data set as I used in this screencast you can go to http://data.related-work.net and find the data set as well as a description of the data base schema: