1- Give example of insert operation that violates key constraint

2- Give example of delete operation that violates referential integrity constraint

3- Give example of update operation that violates entity integrity

4- Give example of insert operation that violates referential integrity constraint

5- Give example of valid insert operation

Course Department Dept id Dept_name 1 IS 2 CS 3 IT C# N101 D203 445 Cname Networks Database Data Mining Hours 5 4 3 Student St id 5667 3451 1122 St name Ahmed Salem Magda Karim Hoda Hany DOB 5/10/1997 12/08/1999 21/11/1999 Address El marwa El hamra El rawda Dept_id 1 3 3 Grades St id 1122 5667 3451 C# D203 D203 N101 Grade 90 89 78