Hello I was making some exercises, and wanted to test the <dtml-sqltest> tag. So I wrote the following: select * from address <dtml-sqlgroup required where> <dtml-sqlgroup> <dtml-sqltest name column=name op=like type=string optional> <dtml-or> <dtml-sqltest name column=last_name op=like type=string optional> </dtml-sqlgroup> <dtml-and> <dtml-sqltest company op=like type=string optional> </dtml-sqlgroup> Following the Zope book, that should produce: select * from address if no parameters specified, or: Select * from address where (name like 'ste*' or last_name like 'ste*) in case the name param is valid and so on. Pety that I can't make it working. Everytime I run it, all conditions are rendered, regardless. So I modified it this way select * from address <dtml-sqlgroup required where> <dtml-if name> <dtml-sqlgroup> <dtml-sqltest name column=name op=like type=string optional> <dtml-or> <dtml-sqltest name column=last_name op=like type=string optional> </dtml-sqlgroup> </dtml-if> <dtml-and> <dtml-if company> <dtml-sqltest company op=like type=string optional> </dtml-if> </dtml-sqlgroup> but this way it is not like the book describes and requires some extra work, and I think it is not in the intentions of the sqlgroup/sqltest tag functionality. Now the question is: where I make it wrong? Note that I put the two parameters in the ZSQL parameters list. Thanks for the kind help! Stefano