Trying to overwrite sqlite database in iPhone app

问题:

Unlike most sqlite apps where developers don't want to overwrite data in a sqlite database, I'm trying to enable an app to overwrite all data with future updates. The sqlite database will have the exact same name and have the same tables, I just want to be able to update the data contained in the database without making users delete the app and reinstall it. Is there an easy method to do this?

Thanks in advance!

回答1:

A SQLite database file is just a normal file, so no special steps are needed. Get the path or URL to the file, and use NSFileManager's -removeItemAtPath:error: or -removeItemAtURL:error:. Then create the new database the same way you created the old one.