row_array([$n = 0])

num_fields()

trans_strict([$mode = TRUE])

cache_delete_all()

num_rows()

row([$n = 0[, $type = 'object']])

platform()

or_group_start()

$this->db->call_function(); This function enables you to call PHP database functions that are not natively included in CodeIgniter,

update([$table = ''[, $set = NULL[, $where = NULL[, $limit = NULL]]]])