A. Ramesh et Dl. Ali, QUERY TRANSFORMATION IN HETEROGENEOUS DISTRIBUTED DATABASE-SYSTEMS, Computers & industrial engineering, 31(1-2), 1996, pp. 323-326
A heterogeneous Distributed Database Management system is organized as
a federation of nodes with different functional capabilities and usin
g different nodal query languages. The problem of query decomposition
and translation is investigated and two approaches are identified as d
irect translation and a translation using an intermediate canonical la
nguage. The use of universal symbolic manipulation techniques instead
of dedicated cross-translators to perform query transformation is sugg
ested.