Hi! Following http://platform.xwiki.org/xwiki/bin/view/DevGuide/QueryGuide and a lot of help from people on this list, I got working this query: #set($query = ", BaseObject as obj, StringProperty as prop where doc.fullName = obj.name and obj.className='Users.PdrUserClass' and obj.id=prop.id.id and prop.id.name='Type' and (prop.value like '" + $usertypeOne + "' or prop.value like '" + $usertypeTwo + "') order by doc.fullName asc") I do need to add now another criteria with an *AND* operator querying a different property (Withdrawal) of the same class (User.PdrUserClass). I'm miserably failing to construct this query; some of my attempts lead MySQL to eat 99% of the processor time use. Please, could you help me with this query? Thanks! Ricardo -- Ricardo Rodríguez CTO eBioTIC. Life Sciences, Data Modeling and Information Management Systems