SUB-PREDICATE TESTS IN DATABASE
H.‐J. Schneider · 1979
outgrew the design process of the distributed database system VDN. Sub-predicate tests can be used for distributing data, authorization, access path selection, subtype selection, synchronization and integrity constraints. An algorithm for sub-predicate testing for a suitable class of predicates is presented and its time-behaviour is investigated. The work described in this paper