Answer / suresh.somayajula

integrity means which doesn't allow duplication of files.

we have 3 types of integrity rules.

1. Entity Integrity Rule : In this Primary key can't

be null.

2. Referential Integrity : It tells the relation

between the Master Table and Child table.

3. Business Rule Integrity.

Thanks,

suresh_somayajula@hotmail.com

Answer / guest

restriction rules in a tables . these are in 3 category.

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