Question

Which among these is the property of a primary key field?
a) Unique values b) Not Null c) Both(i) and (ii) d) None of these

Answer 1

Hey there!

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Which among these is the property of a primary key field?

Options-:

(a) Unique Values
(b) Not Null
(c) Both(i) and (ii) ✔
(d) None of these



Answer => Option (C) Both (i) and (ii) ✔


• Primary keys must contain UNIQUE values.
• A primary key column cannot have NULL values.

Answer 2

Heya...

==== Answer ====

Which among these in property of a primary field..

Unique values and Not Null...

So both (I) and (II) are correct...

Primary key contain unique value...

Primary key doesn't have null value...

Thank you