Modern database systems support one set of integrity constraints per database. Imagine you could specify multiple sets of integrity constraints per database, one for each type of application. This paper argues why this might be a good idea and introduces a system that implements this idea.<\/p>\n","protected":false},"excerpt":{"rendered":"
Modern database systems support one set of integrity constraints per database. Imagine you could specify multiple sets of integrity constraints per database, one for each type of application. 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