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What are constraints? Explain different types of
constraints?
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Answer Posted / g.rajesh(m.tech)
constrain kis a rule.
types of constriants are
1.domain constrain:
eg:chjeck,default,not null.
2.entity constraints:
eg:primary key.
unique key
3.referential constrain:
eg:foreign key
| Is This Answer Correct ? | 7 Yes | 9 No |
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