Question

i want to make “clear-all” button which delete all data in my sqlite, my code is like this :

private void clearAll() {

        mDbHelper = new NotesDbAdapter(this);
        mDbHelper.open();
        Cursor notesCursor = mDbHelper.fetchAllNotes();
        notesCursor.moveToFirst();
        do{
        for(int i=0;i<notesCursor.getCount();i++){
            mDbHelper.deleteNote(i);
        }
        }while(notesCursor.moveToNext());
}

but i can’t delete it, anyone can help me to solve this problem? thanks before

Answer 1

you should be able to use something like this:

mDbHelper.delete("tableName",null,null);
notesCursor.requery();

To delete all the values in your table and update your cursor.