6.4 will have the HAVING clause, that will testing of aggregates.
6.4 beta is September 1.
> I keep crashing my backend doing the following
> UPDATE logins SET
> logoff_time='now'
> WHERE
> login_time=max(login_time)
> AND
> account_name='tempuser'
> ;
>
> login_time is type 'datetime'
>
> As a side note, I used this method because the following didn't work
> UPDATE logins SET
> logoff_time='now'
> WHERE
> id=(SELECT DISTINCT id FROM logins
> WHERE
> login_time IS NOT NULL
> AND
> account_name='tempuser'
> )
> ;
>
> Point is, what is the best method to update a record based on it's
> datetime being the most recent?
>
>
>
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