Question

So I have a database named db.sqlite3. And I work on an Android project. I need to do some query on it.

I have a lot of questions about it – is there a good tutorial?

Most importantly, where did I put the database? (It’s not to big in the project but which folder?)

How do I do a query?

(When I googed it, I didn’t find anything relevant.)

Answer 1

Put the database in the assets folder. At runtime you can access it like this:

InputStream db = activityContext.getAssets().open("db.sqlite3");

You can write it wherever you want, but it is better to store it in the /data/data/%app_package_name%/databases folder.

Then extend SQLiteOpenHelper and pass “db.sqlite3” as the name argument:

SQLiteOpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version)

Later, you can getReadableDatabase() or getWritableDatabase() and issue queries on the returned objects.