Tom Deprez writes:

... nested Z SQL method call ...

I do not understand fully, what you want to do. But the following FAQ may also be your problem: Z SQL methods do *NOT* use the DTML namespace for parameters. You must either pass the parameters explicitly: <dtml-in "sql_method(param1=val1, ..., paramn=valn)"> or put the parameters in the REQUEST object: <dtml-call "REQUEST.set('param1', val1)"> .... <dtml-call "REQUEST.set('paramn', valn)"> <dtml-in sql_method> Dieter