Computer Science, asked by Progyangoswami2002, 11 months ago

What is Null constraint ? Explain

Answers

Answered by sheetalshreya11n48
1

Answer:

By default a column can hold NULL values.

The NULL CONSTRAINT is logically equivalent to omitting the NOT NULL constraint from the column definition.

hope this helps

Answered by utkrist08
0

Answer:

The null constraint is a restriction placed on a column in a relational database table.

Explanation:

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