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On the Interaction Between Closure Operations and Choice Functions with Applications to Relational Database.
János Demetrovics
G. Hencsey
Leonid Libkin
Ilya B. Muchnik
Published in:
Acta Cybern. (1992)
Keyphrases
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relational databases
normal form
databases
human computer interaction
database
relational data
relational model
arithmetic operations
search engine
xml data
database technology
xml databases
user interaction
algebraic operations
functional units