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PARTAGE ET RÉSOLUTION DE CONFLITS DE MODIFICATIONS DE DONNÉES DANS UN SYSTÈME DE BASE DE DONNÉES À PLUSIEURS MAÎTRES
PARTAGE ET RÉSOLUTION DE CONFLITS DE MODIFICATIONS DE DONNÉES DANS UN SYSTÈME DE BASE DE DONNÉES À PLUSIEURS MAÎTRES
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摘要
A computer-based method and system for sharing and deconflicting data changes amongst a plurality of replication sites. In a particular embodiment, data changes at sites to data objects are tracked by each site on a per-data object basis using per-data object version vectors. In another particular embodiment, data changes at sites to links connecting two data objects are tracked by each site on a per-link set basis using per-link set version vectors. In another particular embodiment, per-object version vectors are used to detect a conflict resulting from concurrent changes at two or more sites in which one of the concurrent changes includes an object resolution change.
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