SQLite数据库不返回任何行

For my app i am trying to save highscores to a database stored on my android device named "highscores.db". Now I am having a problem that the mysql is not returning any rows at al, so i would guess that either my inserting is going wrong or my retrieving is going on. I have no idea at all what is wrong (first time sqlite user).For my app i am trying to save highscores to a