updating single listView item

I have a listview , where different data is stored (SQLite database). I added a detailviewactivity: when you click on the item in the listview it passes and shows all the data at the detailviewactivity in different EditViews. Looks like a Table with: booktitle, bookauthor, bookrating, bookshelf.

I added an "Update Button", so when I change the entries and hit the update button, the edited entries should be stored in the SQLite DB and should be shown in the listview.

I used the video tutorial: https://www.youtube.com/watch?v=g2x1lzBKB8M&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=39

But it is working with a special search which i don't want to use.

Any suggestions?