Code an oracle database trigger

Assignment Help Database Management System

Reference no: EM1389983

1. Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.

2. Code an Oracle Database trigger to allow the deletion of a department if it only has one employee. Assign the last employee to the Human Resources department.

3. Design a system of triggers to enforce the M-M relationship.

4. as an example, but assume that departments with only one employee can be deleted. Assign the last employee in a department to Human Resources.

Reference no: EM1389983

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