GkSeries.com
Home
GK
ENGLISH
CURRENT AFFAIRS
APTITUDE
REASONING
BANKING
UGC NET
COMPUTER SC.
COURSES
Home
/
Computer Science
/
A primary key :
Question
A primary key :
A
is also referred to as a composite key
B
is a unique identifier in a column
C
uniquely identities the data in row
D
must be accompanied by a corresponding foreign key
Answer & Explanation
Option: [B]
Advertisement
Next Question →