title: niagaracq : a scalable continuous query system for internet databases j chen , d dewitt , f tian , y wang sigmod conference 2000. authors: nan. venue: nan. year: nan
title: niagaracq : a scalable continuous query system for internet databases c jian-jun , j dewitt david , f tianâ ? ¦ sigmod conference ,. authors: nan. venue: nan. year: nan