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Lecture Notes in Computer Science
While XQuery is becoming a standard, the W3C is currently discussing the features of an update language for XML, and its requirements. Therefore, time is ripe for designing and defining the language features and extensions that are usually needed when updates are supported: reaction policies to constraint violations, business rules, and more. In the past years, several languages have been proposed for updates as well as for triggers in XML, such as XUpdate and Active XQuery. In this paper, wedoi:10.1007/11896548_65 fatcat:ak6ilji3n5eljb4tvuouegtuo4