SQL查询优化：解决子查询中count(*)数量不正确的问题

"SELECT Gender,player.AvaterType,COUNT() FROM player,(SELECT AvaterType,Count() FROM player WHERE Gender != 0 GROUP BY AvaterType) as avatar_COUNT WHERE 1=1 GROUP BY Gender,AvaterType HAVING Gender != 0 ORDER BY AvaterType" 添加了avatar_COUNT后，count()的数量就不正确了，该如何修改内容：您可以尝试使用子查询来计算每个AvaterType的数量，并将其与player表进行连接。以下是修改后的查询语句： "SELECT Gender, player.AvaterType, avatar_COUNT.count FROM player JOIN (SELECT AvaterType, COUNT() as count FROM player WHERE Gender != 0 GROUP BY AvaterType) as avatar_COUNT ON player.AvaterType = avatar_COUNT.AvaterType WHERE Gender != 0 ORDER BY player.AvaterType"