Average of a difference in Timestamps
I have two timestamp fields: completed at and delivered at. I want to find the difference of both and take the average.
The dates include a window that is sometimes over a day. I read this
By @GrantSmith which is useful. Is there an easy way to do this without breaking up each segment (day, hour, minute, second) then taking the average of each and combining?
Best Answer
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Working with dates can be tricky, and while TIMEDIFF can work, I've found using UNIX_TIMESTAMP to work best.
UNIX_TIMESTAMP(Date1)-UNIX_TIMESTAMP(Date2)
This will give you the time difference in seconds, if you want it to be minutes you just divide by 60, for hours by 3600 (60*60) or 86400 (60*60*24) for days.
You might want to perform additional checks to see if a date is NULL or not, as NULLs will make the operation to return NULL which might not always be the desired outcome.2
Answers
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Have you considered using TIMEDIFF?
2 -
Working with dates can be tricky, and while TIMEDIFF can work, I've found using UNIX_TIMESTAMP to work best.
UNIX_TIMESTAMP(Date1)-UNIX_TIMESTAMP(Date2)
This will give you the time difference in seconds, if you want it to be minutes you just divide by 60, for hours by 3600 (60*60) or 86400 (60*60*24) for days.
You might want to perform additional checks to see if a date is NULL or not, as NULLs will make the operation to return NULL which might not always be the desired outcome.2
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