How to minus 6 hours from a timestamp?


I have a need to minus 6 hours from a time stamp if the current timestamp is greater than the current time.

I have attached the script for you to see.

Not sure what I'm doing wrong here.

Any help would be much appreciated.


SET validDate = realdate - 6 hour
where realdate > CURRENT_TIMESTAMP()

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Timestamps are expressed in seconds, so,

SET validDate = realdate - (6 * 60 * 60)
where realdate > CURRENT_TIMESTAMP()
try this
SET validDate = date_add(realdate,interval -6 hour)
where realdate > CURRENT_TIMESTAMP()

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kenuk110Author Commented:
Thanks for the quick response!

I ran the script but I get an odd output, below is just one of the results

realdate = 2008-10-21 12:30:43


validDate = 2008-10-21 10:14:43

Any ideas??

kenuk110Author Commented:
Brilliant, works perfectly. Cheers.
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