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what is Constraint? How many types of constraints in SQL ?
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Answer Posted / manoj kumar
Contraint is a provision to limit or enforce the data in
the sql tables. It is of five types:-
1 Primary Key Constraint
2 Foreign Key Constraint
3 Unique Constraint
4 Not Null Constraint
5 Check Constraint
| Is This Answer Correct ? | 7 Yes | 6 No |
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