The world would be such a simple place if all of our data sources just lined up and merged perfectly with no effort. Simple place but boring for sure. So what's a developer to do? This document walks new Qlik Developers through various ways to merge those data sources that are giving you fits.
Not intended to take the place of the many other great resources out there, just a simple way to visualize types of data, the problems posed by each and help you as a "newbie" and familiarize you with the terminology so that you know what to search for in other great community posts or know what to get much more in depth help with from great books that are out there.
Hope it helps