staff table lists all staff members,
including information on email address, login information, and
staff_id: A surrogate primary key that
uniquely identifies the staff member.
first_name: The first name of the staff
last_name: The last name of the staff
address_id: A foreign key to the staff
member's address in the
containing a photograph of the employee.
store_id: The staff member's
“home store”. The employee can work at other
stores but is generally assigned to the store listed.
active: Whether this is an active
employee. If employees leave their rows are not deleted
from this table, instead this column is set to
username: The user name used by the
staff member to access the rental system.
password: The password used by the
staff member to access the rental system. The password
should be stored as a hash using the
last_update: The time that the row was
created or most recently updated.