Re: time stamp specific to columns
- Date: Wed, 08 Apr 2015 08:42:02 -0700
- From: Andrew Wallace <awallace@xxxxxxxxxxxxx>
- Subject: Re: time stamp specific to columns
I think you'd have to do that with a trigger.
On 4/8/15 6:36 AM, Martin Mueller wrote:
I understand how a timestamp column automatically changes when there is a
change in a data row. Is it possible to limit the update to changes in
particular columns? I have a table where I care about changes in any of
four different columns, but I don¹t care about changes in other columns or
Is there a command that says ³update the time stamp if and only if there
is a change in columns a, b,c, or d"
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