Like others have said, it does rarely happens. Be prepared to have something else lined up, if you dare ask. It is common practice to give office staff multiple roles, but their job title and pay reflects one position.
Depends on position and how well you are liked
Answered - VP of Sales Marketing, HR, (Former Employee) - Simi Valley, CA
Never unless you have another job offer or beg for one. Even then it's not often.
None for office staff
They do not. When your review comes up they will string you along for as long as they can then let you go and bring someone else in at standard starting pay.
Answered - Sr. Staff Accountant (Former Employee) - Portland, OR
When home prices are increased
Answered - Sales Representative (Former Employee) - Jacksonville, NC