10. Once the view has been created, create an INSTEAD OF trigger on the CUSTOMER_VIEW to allow updates to the customer's name, while maintaining the history of previous names; by following these criteria: 10.1.1. The trigger should be invoked for INSERTs or UPDATEs. 10.1.2. The trigger should update the CUSTOMER_NAME table entry that matches the IDCUSTOMER and has the ENDDATE as NULL, to have the current SYSDATE as the ENDDATE. 10.1.3. The trigger should use the CNAME_SEQ sequence and insert a new record into the CNAME table. 10.1.4. The trigger should use the CN_5EQ sequence to insert a new record into the CUSTOMER_NAME table. The new record should link the new CNAME record to the existing CUSTOMER record; using the current SYSDATE as the STARTDATE, and also setting ENDATE to the value NULL to indicate that the new name is the currently valid name