Mysql 计数（*）在没有适用行时返回错误结果

我正在运行以下查询：

SELECT *, COUNT(iup.user_id) AS user_plans_count
FROM #__iop_user_plans iup
INNER JOIN #__iop_plan ip ON iup.iop_id = ip.id
WHERE `iup`.`state` = 1 AND `iup`.`user_id` IS NOT NULL AND `iup`.`accepted` = 0

当没有适用的行时，MySQL仍然返回一个只包含计数的结果。如何更改查询，使其仅在大于0时返回计数？

这样就可以了

SELECT *, COUNT(iup.user_id) AS user_plans_count
FROM #__iop_user_plans iup
INNER JOIN #__iop_plan ip ON iup.iop_id = ip.id
WHERE `iup`.`state` = 1 AND `iup`.`user_id` IS NOT NULL 
AND `iup`.`accepted` = 0 
HAVING user_plans_count>0

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你真棒！谢谢回答。我等待时间限制过去。那是9分钟，大约30分钟前