1. There shoudl be one-one relatiionship b/w instance of entity and row in a table
2. A field should have same meaning in each row.
3. Each table represents atmost one entity.
4a. Multiple instance of entity represents by multiple rows in a table.
4b. Multiple instance of entity should not be represents as multiple table.
5. Joins should be based only on primary foreign key equality.
6. keys should links correctly.
List of Asked Interview Questions: C# .NET SQL MVC WCF Questions
