mysql中将null值转换为0的语句
发布时间：2016-12-29 来源：查字典编辑
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