Within a (defquery) you use (declare (variables ...)) to specify query parameters, and the (run-query*) function lets you provide values for them.
Usually the condition would have to be part of the query pattern, with only the value being provided by the run-query* parameter. -W On 23 November 2011 00:34, Sam Sarjant <sj...@waikato.ac.nz> wrote: > Hello. > Is it possible to use tests as variables submitted to queries? Or do > variables always have to be concrete facts (or already bound facts)? > > For example, given the facts (num 0) (num 1) (num 2)..., is it possible to > perform a query that looks something like (run-query* numQuery ?X&:(<= 0 ?X > 5)) which will return all nums between 0 and 5 (inclusive). > > I gave the above example a go (with the proper definitions and such), but > it threw an exception at me, telling me 'No such variable X'. This is > mostly a question out of curiosity, as I don't absolutely need queries to > accept test variables, but it would be nice if there was some sort of > functionality to perform this task. > > -- > - Thanks, Sam Sarjant > www.samsarjant.com > >
