how show message if dont to show from db message name "you dont any friend“这是php代码$res = mysql_query("
SELECT profile_friends.friends_friend_id, members.name,profile_friends.friends_member_id,memb
team_one_id,team_one_name,team_two_id,team_two_name,round_id,location_name,裁判
SELECT * FROM `match` INNERJOIN `team` AS `team_two` ON `match`.`team_two` = `team_two`.`team_
如果我的表是这样的,我如何在mysql中达到预期的结果。我不确定如何才能得到如下所需的结果。as lost, sum(if(result > 0 and result < 4,1,0)) as played
from match_score_cardinnerjoin fixtures on match_score_card.match_id = fixtures.<