Question: Relational model, SQL database a) Is it allowed to move the columns in Parts so that they are in a different order? Why or why

Relational model, SQL database

a) Is it allowed to move the columns in Parts so that they are in a different order? Why or

why not?

b) Is it allowed to change the city for P1 from London to London, Athens? Why or why not

not?

c) Make an Equi Join on the above relationships and report the answer.

d) The Relationship Parts is only in 2NF, why?

e) Why is it not allowed for a primary key to be ZERO?

Relational model, SQL database a) Is it allowed to move the

Shipments P# S# Si S1 P1 P2 P1 QTY 300 200 500 S2 Parts P# P1 P2 P3 P4 PS PNAME Nut Bolt Screw Screw Cam COLOR Red Green Blue Red Blue WEIGHT 12 17 17 14 12 CITY London Paris Rome London Paris COUNTRY Great Britain France Italy Great Britain France

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