Open In App

UGC-NET | UGC-NET CS 2017 Dec 2 | Question 18

Like Article
Like
Save
Share
Report

Match the following with respect to RDBMS :
q18
(A) (1)
(B) (2)
(C) (3)
(D) (4)


Answer: (B)

Explanation: Codd’s rule says that entity integrity must be maintained so that no duplicate record exist in DB.
In RDBMS table column entry must be valid, It also comes under codd’s rule.
Referential data items strictly follows integrity on insertion, deletion and modification of table and user defined integrity constraints enlist some specific business rule, these rule don’t fall into entity or domain.

So, option (B) is correct.


Quiz of this Question


Last Updated : 15 Mar, 2018
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads