Answers for "rows affected in codeigniter 3"

git cancel last commit

git reset --soft HEAD~1

undo last commit

$ git reset --soft HEAD~1

remove last commit

git commit -m "Something terribly misguided"
git reset HEAD~                              
[ edit files as necessary ]                  
git add .                                    
git commit -c ORIG_HEAD

codeigniter check affected rows

return $this->db->affected_rows() > 0;