What different between store database in different locations in iOS?

Question

I\'m working with SQLite.swift. In the document, the path to the database is:

let path = NSSearchPathForDirectoriesInDomains(
                .DocumentDirect         


        

Answer 1

The main difference is that storing the file in the documents folder means you can write (update) it, which is pretty important for a database file. You cannot write to a file in the app bundle.

The usual pattern for using a database in an app is:

1. Create a pre-seeded database during development and copy it to the app bundle during building.
2. When running, check if the database file exists and is up-to-date in the documents folder.
3. If not, copy it from the app bundle.
4. Open the database in the documents folder and read/write as desired.