In OpenOffice 2.0 Reports, it's easy to do the simple stuff, like just printing the contents of a table or query. It requires no SQL know-how at all, just the ability to press F4 and click and drag.
O'ReillyNet has posted a detailed OpenOffice tutorial. "This article describes how to create and use a letterhead with OpenOffice.org. Along the way you'll learn how to use a wizard, templates, styles ...