Database redesign is fairly easy when ________. A) information ...

[wrbasek0]

Database redesign is fairly easy when ________.
 
  A) information systems and organizations influence each other
  B) the design was done correctly the first time
  C) there is no data in the database
  D) good backups of the database are available

Question 2

Which of the following is not true about a NULL attribute?
 
  A) On insertion, entering the data for that field is optional.
  B) It is an important property of an attribute.
  C) It must have a default value specified.
  D) A primary key can't be NULL.

[bfulkerson77]

Answer to Question 1

C

Answer to Question 2

C