Which of the following can be a disadvantage of a natural key?
A) The attempt guarantee uniqueness may result in awkward composite keys
B) It is difficult to guarantee the uniqueness of a value
C) Because a natural key represents business data it can change over time
D) All of the above
D
You might also like to view...
Income bonds pay interest only if the issuing company actually earns the indicated interest. Thus, these securities cannot bankrupt a company, and this makes them safer from an investor's perspective than regular bonds.
Answer the following statement true (T) or false (F)
List the seven main strategies for idea generation and give an example of each.
What will be an ideal response?
A post office has a single line for customers waiting for the next available postal clerk. There are two postal clerks who work at the same rate
The arrival rate of customers follows a Poisson distribution, while the service time follows an exponential distribution. The average arrival rate is three per minute and the average service rate is two per minute for each of the two clerks. What proportion of time are both clerks idle? A) 0.643 B) 0.250 C) 0.750 D) 0.143 E) None of the above
The Lanham Act spells out the exact method for protecting registered trademarks, but it does not force firms to register their trademarks.
Answer the following statement true (T) or false (F)