mysql中将null值转换为0的语句
摘要：复制代码代码如下:SELECTIF(AVG(cai.conversionsRate)ISNULL,0,AVG(cai.conversions...
复制代码 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
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