db_insert
$s->db_insert($table,\%data,[$keyfield]);
db_update_key
$s->db_update_key($table,$keyfield,$keyid,\%data);
db_update_where
$s->db_update_where($table,$where,\%data);
db_q
$s->db_q($query,[$t],[%args]);
Runs given $query and optionally returns data in structure defined by $t.
Values of $t: (scalar,hash,array,keyval,hashhash,arrayhash,importfile,csv)