Get time in Oracle for half an hour before the current time

Source: Internet
Author: User

A recent project to determine the value of a column according to the data situation half an hour ago, but never thought how to get the current time half an hour ago, today suddenly thought can be done by sysdate to obtain, such as sysdate-1, just started not to look at the results, thought not to, Then inadvertently looked at the previous results found that Sysdate-1 obtained is the current time of the day before, that is, Sysdate-n obtained is the current time n days before the results, so try to sysdate-0.5/24 so get the desired results. OK is done.

Get time in Oracle for half an hour before the current time

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