a. The primary key cannot be null. b. None of these choices is correct. c. Most tables need a foreign key. d. Tables are linked by using foreign keys.

The song about casey jones a railroad engineer who gives his life on the job would most likely gall under the folk song category of? a-work song b-nonsense song c-religious song d-ballad

What is the error in the following pseudocode? module main() call raisetopower(2, 1.5) end module module raisetopower(real value, integer power) declare real result set result = value^power display result end module

How to delete a question in