Computers and Technology, 12.03.2020 03:47 whitakers87

Consider a relation representing the present position of molecules in a closed container. The attributes are the ID for the molecule, the X, Y, and Z coordinates of the molecule, and its velocity in the X, Y, and Z dimensions. Refer to the X, Y, and Z coordinates as PX, PY, and PZ respectively, and the X, Y, and Z velocities as VX, VY, and VZ respectively.

a) What functional dependencies do you expect to hold?

b) What are the keys?

c) Other than the keys list three superkeys.

d) Other than the keys how superkeys are there?

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Consider a relation representing the present position of molecules in a closed container. The attrib...