Re: Query is stuck

On 4/14/2010 9:42 AM, Bill Moran wrote:
>
> Man, it's hard to read your emails. I've reformatted, I suggest you
> improve the formatting on future emails, as I was about to say "to
> hell with this question" because it was just too difficult to read,
> and I expect there are others on the list who did just that.
>
I did for the most part.
> select report_id, dm_ip, dm_mac, dm_user,
> dm_os, report_time, sys_name,
> sys_user, sys_user_domain, ss_key,
> login_time, role_id, new_vlan_id
> from repcopy as a
> where report_time = (
> select max(report_time) from repcopy as b
> where a.dm_user=b.dm_user and a.dm_ip = b.dm_ip and b.ss_key != ''
> )
> and report_status = 0 and dm_user = 'u3';
>
>
I suggest writting something like this.

select report_id, dm_ip, dm_mac, dm_user,
dm_os, report_time, sys_name,
sys_user, sys_user_domain, ss_key,
login_time, role_id, new_vlan_id
from repcopy as a
(select max(report_time) as rtime,
dm_user, dm_ip
from repcopy
group by dm_user, dm_ip
where ss_key != '') as materialized
where report_time = materialized.rtime
and materialized.dm_user = a.dm_user
and materialized.dm__ip = a_ip
and report_status = 0
and dm_user = 'u3';

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