The symbol used in mathematics to indicate the summation process is the Greek letter ________

What is a trigger? Explain the working of BEFORE and AFTER triggers.

What will be an ideal response?

When working with linked lists, does the client have to think about nodes?

A. Yes, because the client is the one who inserts nodes into a linked list B. No, because the client just supplies elements and the linked list data structure takes care of putting them into nodes C. Yes, because the linked list cannot put an element into a node without knowing what data type the element is D. No, because linked lists rarely have nodes in them