I am not very sure from which version Jasper started supporting this feature, but recently when I was evaluating 3.7.5 version I suddenly explored this... and it is so easy...!
Well here it is how... when you write a query in the querystring tag, Jasper has added a property called "language" and here it supports for different languages querystring. so for calling a procedure from jasper report
Well here it is how... when you write a query in the querystring tag, Jasper has added a property called "language" and here it supports for different languages querystring. so for calling a procedure from jasper report