The paper outlines a mechanism for the definition and maintenance of views within a historical database environment. The view definition language uses extending Boolean and comparison operators by allowing their operands to be sets of intervals. Two algorithms for maintaining materialized historical views are presented.
机构:
Gardner Webb Univ, M Christopher White Sch Theol, Boiling Springs, NC 28017 USAGardner Webb Univ, M Christopher White Sch Theol, Boiling Springs, NC 28017 USA