MySQL存儲過程查詢

Question

我具有以下存儲過程，該過程返回最近或最后插入的廣告系列的已發送電子郵件

“現在，我的目標是僅顯示“已發送：計數大於” 0”的廣告系列，我如何才能更改以下sp來做到這一點，因為現在它返回的所有廣告系列都包括“ 0”和大於“ 0” “” ..

代碼是...

DELIMITER $$

DROP PROCEDURE IF EXISTS `couponcrusaderdev`.`sp_tblemailcampaignLoadTop4`$$

CREATE DEFINER=`anyone`@`000.000.00.00` PROCEDURE `sp_tblemailcampaignLoadTop4`(p_UserID Int(11))
    SQL SECURITY INVOKER
BEGIN
SELECT EC.*,(Select MailChimpCampaignID from tblcampaignschedule where EC.CampaignID=tblcampaignschedule.CampaignID ) as MailChimpCampaignID,(Select  count(MailChimpCampaignID) from tblcampaignschedule) as msent,CT.CampaignType, (Select tblcampaignschedule.ScheduleDateTime from tblcampaignschedule 
where EC.CampaignID=tblcampaignschedule.CampaignID  order By ScheduleDateTime desc limit 1) as CampaignDateTime,
(Select Count(*) from tblemailsent ES
inner join tblcampaignschedule CS on CS.CampaignSceduleID= ES.CampaignSceduleID
where ES.Status= 'ProcessedMessage' and CS.CampaignID = EC.CampaignID)as Sent
FROM tblemailcampaign EC
inner join tblcampalgntype  CT on CT.CampaignTypeID= EC.CampaignTypeID
inner join tblcompanies C On EC.CompanyID = C.CompanyID
WHERE (p_UserID = 0 OR C.AddUserID = p_UserID)
 order by CampaignDateTime desc limit 4
;
END$$

DELIMI

Answer 1

您應該使用HAVING

 HAVING COUNT(sent) >= 0;

手冊：
http://dev.mysql.com/doc/refman/5.0/en/group-by-hidden-columns.html