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CS 348 (13)
Ihab Ilyas (11)
Lecture

Assignment #2 Fall 2009 - Solutions available in another note

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Department
Computer Science
Course
CS 348
Professor
Ihab Ilyas
Semester
Fall

Description
CS348Assignment2Fall2009DueFridayNovember202009500PMQuestion110marksUsingArmstrongsaxiomsplusunionanddecompositionprovethefollowinggeneraltransitivityruleIfZYthenXYandZWimplyXWQuestion220marksProvethatthesetofaxiomsfBBBgiscompleteandsoundHintToprovecompletenessyouneedto123deriveArmstrongsaxiomsfromthegivenaxiomsToprovesoundnessyouneedtoderivethegivenaxiomsfromArmstrongsaxioms1BXX12BIfXYthenXZY23BIfXYYZthenXWZW3Question315marksConsiderthefollowingsetofFDsBCDEFDEBAADBFGShowthatBisacandidatekeyfortherelationRfABCDEFGgQuestion425marksFortherelationRfSPNCXYQgandthefollowingsetofFDsSNCPXYSPQDecomposeRintoaBCNFrelationalschemaShowadecompositiontr
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