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In class exercises

In class exercises. Consider the relation Kwatts, Dorm, Floor#, Date, Time, Temp, Humidity, Occupancy, Weekday?, SensorID and FDs that are asserted as true of the relation 1) Dorm, Floor#  Occupancy 2) Date, Time  Temp, Humidity 3) Date  Weekday?

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In class exercises

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  1. In class exercises Consider the relation Kwatts, Dorm, Floor#, Date, Time, Temp, Humidity, Occupancy, Weekday?, SensorID and FDs that are asserted as true of the relation 1) Dorm, Floor#  Occupancy 2) Date, Time  Temp, Humidity 3) Date  Weekday? 4) SensorID, Date, Time, Temp  Kwatts 5) Dorm, Floor#, Date, Time, Temp  Kwatts 6) SensorId  Dorm, Floor# 7) Dorm, Floor#  SensorId a) Give a minimal FD set. If there is more than one such set, just give one of them. b) Give all keys for the relation

  2. c) Give a dependency-preserving decomposition of the relation into BCNF tables. If the relation is already in BCNF then state so. If there is no dependency-preserving decomposition into BCNF tables then state so.

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