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Bringing the data model closer to the natural presentation of data stored via Web documents is the main motivation behind nesting db\u2010graphs. The importance of nested db\u2010graphs is similar to the importance of nested tables in relational model. The main purpose of the paper is to provide a mechanism to query nested semi\u2010structured data and Web forms in a uniform way. Most of the languages proposed so far have been designed as extensions of SQL with, among others, the advantage to provide a user\u2010friendly syntax and commercial flavor. 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