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An Introduction to the Completeness of Languages for Complex Objects and Nested Relations.
Serge Abiteboul
Catriel Beeri
Marc Gyssens
Dirk Van Gucht
Published in:
NF² (1987)
Keyphrases
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nested relations
complex objects
relational model
expressive power
query language
normal form
relational algebra
distance function
data sets
databases
information content
object oriented databases
relational calculus