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DBPL
2007
Springer
13 years 8 months ago
2007
Springer
DBPL
2007
Springer
13 years 10 months ago
2007
Springer
DBPL
2007
Springer
13 years 10 months ago
2007
Springer
Abstract. The complexity of containment and satisfiability of conjunctive queries over finite, unranked, labeled trees is studied with respect to the axes Child, NextSibling, the...
DBPL
2007
Springer
13 years 10 months ago
2007
Springer
Data streams are modeled as infinite or finite sequences of data elements coming from an arbitrary but fixed universe. The universe can have various built-in functions and predi...
DBPL
2007
Springer
13 years 8 months ago
2007
Springer
Abstract. Formal semantics for XQuery with side-effects have been proposed in [13, 16]. We propose a different semantics which is better suited for database compilation. We substan...