Re: best way to auto-update a field when row is updated

On Thursday 10 March 2005 02:09 pm, Henry Ortega wrote:
> I have the following table
>
> FIELD_A        |          FIELD_B          |           TSTAMP
> ---------------------------------------------------------------------------
>----------------------------- x                              y              
>            2005-03-10 14:56:47.456431
>
> TSTAMP = not null default now()
>
> What's the best way to always auto-update TSTAMP to it's
> default value whenever the row gets updated?
> (e.g. update TABLENAME set FIELD_A='zzz' where FIELD_A='x';
> should automatically set TSTAMP to now)
>
trigger on update/insert.


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Larry Rosenman                     http://www.lerctr.org/~ler
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