Question: In relational databases, what is a primary key? A ) A unique identifier for a record B ) A key used to encrypt data C
In relational databases, what is a primary key?
A A unique identifier for a record
B A key used to encrypt data
C A field that can have multiple values
D A field that can be left empty
Step by Step Solution
There are 3 Steps involved in it
1 Expert Approved Answer
Step: 1 Unlock
Question Has Been Solved by an Expert!
Get step-by-step solutions from verified subject matter experts
Step: 2 Unlock
Step: 3 Unlock
