Computer Science, asked by ayushahlawat02, 4 months ago

17. Which is correct statement about primary key of a table
a) Primary keys can contain null values

b) Primary keys cannot contain null values
c) A table can have multiple primary keys with single or multiple fields.

Answers

Answered by nikhilrajkumar690

2

Answer: B

Explanation:

Answered by Anonymous

0

Answer:

answer b

hope it's help full for u

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