Secondary Key Flashcards
1
Q
What is a secondary key used for?
A
A secondary key is used to locate one (or more) records within a database.
2
Q
What else can a secondary key be referred to as?
A
A secondary key can also be called a alternative key.
3
Q
How is a secondary key different to a primary key?
A
It is different from a primary key, because a primary key is guaranteed to return a single record whereas a secondary key may return more than one record.
