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mysql中将null值转换为0的语句
来源: 互联网 发布时间:2014-09-06
本文导语: 代码如下:SELECT IF(AVG(cai.conversionsRate) IS NULL,0,AVG(cai.conversionsRate)) AS conversionsRate FROM campaign_info cai WHERE insertTime BETWEEN '2011-02-01' AND '2011-02-04' AND googleCampaignId=23331401
代码如下:
SELECT
IF(AVG(cai.conversionsRate) IS NULL,0,AVG(cai.conversionsRate))
AS conversionsRate
FROM campaign_info cai
WHERE insertTime BETWEEN '2011-02-01' AND '2011-02-04' AND googleCampaignId=23331401