What is a constraint. Types of constraints ?
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Answer Posted / sohail
Constraint is a restriction on table.There are two types of
constraints 1.ananymous constraint and 2.named
constraint.under named and ananymous constraints there are
1.primary key constraint
2.foreign key constraint
3. not null constraint
4. check constraint
5. unique constraint.
| Is This Answer Correct ? | 40 Yes | 10 No |
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