How to correctly determine if something came to the request from the database in the Cursor?

Question

Android

Good , I
thought, but how do they usually find out if the Cursor is empty,
I write like this

Cursor cursor = sql.rawQuery("SELECT * FROM " + .....);
        if (cursor.moveToNext()) {
            cursor.moveToFirst();
            .....}

I'm not sure if it's correct

Answer 1

really how ?