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?

Answers: 3

Show answers

Other questions on the subject: Computers and Technology

Computers and Technology, 22.06.2019 13:30, ReaLily

1. technician a says horsepower information can be used by consumers to compare the power of different automobile engines. technician b says that manufacturers will often list the horsepower output of their engines in the online service information. who is right?

Answers: 2

continue

Computers and Technology, 22.06.2019 13:30, baeethtsadia

Asoftware company hired ray, a college graduate to work in their development team. ray is assigned to work in the coding phase of a project. what happens during the coding phase of a software development project? a. the customer receives a working model of the software. b. developers convert the program design into code. c. developers gather requirements directly from the stakeholders. d. testing teams check the product for quality.

Answers: 1

continue

Computers and Technology, 23.06.2019 06:00, hilarydodard7099

Which statistical function in a spreadsheet you to see how far each number varies, on average, from the average value of the list?

Answers: 2

continue

Computers and Technology, 23.06.2019 16:30, saintsfan2004

How to do this programming flowchart?

Answers: 3

continue

Do you know the correct answer?

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