Core Data not saving directly to sqlite

In the old days, when I developed iOS app using Core Data for < iOS 7, I remembered that if I am not mistaken, sqlite file in emulator was not saved directly. I need to go to Home in iPad, then the sqlite file was updated.

Now I faced same thing. I observe my sqlite file never get modified, only the shm and wal file. So how can I check my data in sqlite?

The data is being persisted by Core Data since my app can fetch the new inserted/updated data.

Any advices from anyone?