Core Data предоставляет четыре собственных типа постоянных
These store types each offer different benefits and tradeoffs,
and are described in “Persistent Store Features”. The
Binary and xml stores are "atomic”
stores—they must be read and written in their entirety, unlike
the SQLite store which can be modified piecemeal, one record
at a time if you wish.
Refer to the first link (pdf)