Question

我有一个完美的数据库查询;

SELECT 
    campaigns.cid, campaigns.aid, campaigns.weburl, CampCount 
FROM 
    campaigns 
LEFT JOIN 
    (SELECT 
         adtracking.cid, count(*) AS CampCount 
     FROM adtracking 
     WHERE adtracking.createdate = [todays date] 
     GROUP BY adtracking.cid ) AS adtracking ON campaigns.cid = adtracking.cid 
WHERE 
    campaigns.catid = '1' 
    AND campaigns.campaigncomplete = '0' 
    AND campaigns.active = '1' 
    AND (adtracking.cid IS NULL OR CampCount < campaigns.dailynumberofimpressions) 
ORDER BY 
    RAND() 
LIMIT 1

首先，广告表是一个到多个广告系列。因此它适用于许多广告系列的广告客户。 aid是广告客户ID，是广告系列表的链接。 cid是广告系列ID。

一个新字段刚刚放入名为adminstop的advertiseter表中，它的值可以是＆＃34; 0＆＃34;为假和＆＃34; 1＆＃34;真的。如果此条款为真，则此援助的所有广告系列将不再运行。

所以我试图加入查询

where campaign.cid in (select cid from advertisers where aid.adminstop = '0')

我没有任何运气。任何帮助，将不胜感激。谢谢，

杰夫戈德斯坦

破坏的SQL查询

0 个答案: