Q:

A primary key should be defined as:

0

A primary key should be defined as:


  1. NULL
  2. NOT NULL
  3. Either of the above can be used
  4. None of the above are correct

All Answers

need an explanation for this answer? contact us directly to get an explanation for this answer

 (b).NOT NULL

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

This question belongs to these collections

Similar questions


need a help?


find thousands of online teachers now