State the two conditions which are imposed on candidate key-01325
This subjective question is related to the book/course vu eng201 Business and Technical English Writing. It can also be found in vu eng201 Mid Term Solved Past Paper No. 6.
Question 1: State the two conditions which are imposed on candidate key?
Answer:
There are two conditions for the candidate key- It identifies the entity instances uniquely, as is required in case of super key.
- It should be minimum, that is, no proper subset of candidate key is a key.