Please, provide more information on your's application logic.
To catch events which occurs for the table use triggers. See:
Unfortunately they're available only in MySQL 5.0.x, which is still
Paul Halliday <paul.halliday@stripped> wrote:
> I have a table that looks something like this:
> ip | mac_current | mac_change
> now if I have an entry that looks like this
> 10.0.0.1 | 11:11:11:11:11:11:11 | NULL
> If the next time the script runs and the mac has changed, how can I
> catch this and put the new MAC into mac_change?
> Ultimately, I would also like to roll the values too. For example if
> the MAC changes again, put mac_change into mac_current...
> Paul Halliday
> "Diplomacy is the art of saying "Nice doggie!" till you can find a rock."
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