I have studied that, but I do not want a database or SQL functionality. > You should be (or become) aware that SQLite's ACID attribute is not resting on the page cache system. Rather, it is the use of that system along with other means that enables such functionality. The [architecture of SQLite document][1] says that, while the B-Tree subsystem *notifies* the page cache subsystem when it wants to commit, the page cache subsystem still does it. Is that what you meant? I can do this in my app, and I would prefer to, rather than using all of the database code. [1]: https://sqlite.org/arch.html