PHP ʖ²ἯTH º󍋼/A dbplus_update Description ¾¯¸漯B dbplus_update() replaces the tuple given by old with the data from new if and only if old completely matches a tuple within relation. º󍋼/A ưµ㼯A dbplus_unselect ɏһ¼¶ dbplus_xlockrel