usuń wszystkie rekordy z tabeli
DELETE FROM table_name;
usuń wszystkie wiersze z tabeli mysql
-- Quick, no possible rollback
TRUNCATE TABLE my_table;
-- With rollback
DELETE FROM my_table;
COMMIT;
SQL Usuń wiersz z tabeli
DELETE FROM table_name WHERE condition;
Usuń zapytanie
public function deletedata(){
$this->db->where('id', 2);
$this->db->delete('table_name');
}