n Arrays have a maximum size, but nested tables do not.
n Arrays are always dense, but nested tables can be sparse, and so individual elements can
be deleted from a nested table but not from an array.
n Oracle stores array data in-line (in the same tablespace) but stores nested table data
out-of-line in a store table, which is a system-generated database table associated with
the nested table.
n When stored in the database, arrays retain their ordering and subscripts, but nested
tables do not.