Comments: Technical report number 2005-11 ContactPerson: staworko@cse.buffalo.edu Remote host: ubppp249-208.dialin.buffalo.edu ### Begin Citation ### Do not delete this line ### %R 2005-11 %U /tmp/prefcqa-techrep.pdf %A Staworko, Slawomir %A Chomicki, Jan %T Priority-Based Conflict Resolution in Inconsistent Relational Databases %D June 15, 2005 %I Department of Computer Science and Engineering, SUNY Buffalo %K databases, inconsistencies,reparis, preferences %X We study here the impact of priorities on conflict resolution in inconsistent relational databases. We extend the framework based on the notions of repair and consistent query answer. We propose a set of postulates that an extended framework should satisfy and consider two instantiations of the framework: (locally preferred) l-repairs and (globally preferred) g-repairs. We study the relationships between them and the impact each notion of repair has on the computational complexity of repair checking and consistent query answers.