Author Question: A random number should be used when order of processing requires knowledge of the sequence in which ... (Read 79 times)

MGLQZ · **on:** Jul 7, 2018

A random number should be used when order of processing requires knowledge of the sequence in which items enter the system or the order in which events unfold.

Indicate whether the statement is true or false

Question 2

Which best defines the function of a primary key?

A) It uniquely identifies each record
B) It is always a number
C) It is the first field in a table
D) It unlocks the data in a table