我能跑SELECTkilledby,COUNT(killedby)killcountFROMgames_playerinfoWHEREkilledby!=''GROUPBYkilledby得到killedbykillcountPlayer11Player21我可以跑SELECTign,COUNT(ign)numberofgamesFROMgames_playerinfoGROUPbyign得到ignnumberofgamesplayer17player23player33player43我想将第一个查询的每个结果除以第一个查询中每个用户的第二个查询的结果。所以结果应该是ignavgki