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我期待从类似这样的论坛列计算总时间:CacheSQL计算总时间
https://stackoverflow.com/questions/3054943/calculate-sum-time-with-mysql
这里是我的代码不工作:
SEC_TO_TIME(SUM(TIME_TO_SEC(CASE WHEN (SUBSTR(Total_Time,1,2) -
SUBSTR(ActivityTime,1,2)) < 0
THEN '0' || DATEDIFF(hh,Total_Time,ActivityTime)-1 || ':' || DATEDIFF(mi,Total_Time,ActivityTime)
WHEN (SUBSTR(Total_Time,1,2) - SUBSTR(ActivityTime,1,2)) >= 0
THEN '0' || DATEDIFF(hh,Total_Time,ActivityTime) || ':' ||
DATEDIFF(mi,Total_Time,ActivityTime)
END))) AS TotalVariance,
任何帮助会很棒!谢谢!
您是否收到错误#5540:SQLCODE:-359消息:用户定义的SQL函数'SQLUSER.SEC_TO_TIME'不存在?因为SEC_TO_TIME没有内置到缓存中。如何包括你的整个查询以及你想要做什么? – psr