Question

How we can insert and delete primary key?

Answer 1

Explanation:

Click View process details to view more information about a process, edit and update information, and save changes. Click Edit process details to edit a process. Enter your changes and click Save changes. Click Delete process to delete a process. A message window appears. Click Yes, delete to delete

Answer 2

Explanation:

you can delete rows in one table depending on whether or not they exist in another table. ... Column DEPTNO is the primary key of table NEW_SAL.