Thank you very much, Richard. This query is much faster and gives the same result from data point of view. I have only question about period of time from 00:00:00 till 00:02:59. Is this query correct for mentioned period of time?
Grigori G. Solonovitch -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Richard Sims Sent: Monday, August 22, 2011 2:30 PM To: [email protected] Subject: Re: [ADSM-L] Query performance issue Working with timestamps can be onerous. One sometimes has to be wily to compensate for processing time. Try: select msgno, severity, message, originator, nodename, ownername, schedname, \ domainname, servername, sessid, session, process, date_time \ from actlog \ where DATE(DATE_TIME)=CURRENT_DATE and date_time >(current_timestamp - 3 minutes) Add Order By if you want. Richard Sims On Aug 22, 2011, at 3:08 AM, Grigori Solonovitch wrote: > Thank you very much Erwann, but it does not help. There is no visible > improvement. > > Grigori G. Solonovitch > > > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of > Erwann SIMON > Sent: Sunday, August 21, 2011 4:20 PM > To: [email protected] > Subject: Re: [ADSM-L] Query performance issue > > Hi Grigori, > > Try to first add a clause that limit the scope of the search to avoid > calculation on the entire actlog table, something like "... where > date(current_timestamp)=current_date and > cast((current_timestamp-date_time)minutes as decimal)<3 ..." > > Best regards / Cordialement / مع تحياتي > Erwann SIMON > > > Le 21/08/2011 12:38, Grigori Solonovitch a écrit : >> TSM Client 6.2.3.0& TSM Server 5.5.5. >> >> Is there any way to speed up next request? >> >> select msgno, severity, message, originator, nodename, ownername, schedname, >> domainname, servername, sessid, session, process, date_time as >> date_time >> from actlog >> where cast((current_timestamp-date_time)minutes as decimal)<3 >> ORDER BY date_time DESC >> >> Thank you very much in advance. >> >> Grigori G. Solonovitch Please consider the environment before printing this Email. CONFIDENTIALITY AND WAIVER: The information contained in this electronic mail message and any attachments hereto may be legally privileged and confidential. The information is intended only for the recipient(s) named in this message. If you are not the intended recipient you are notified that any use, disclosure, copying or distribution is prohibited. If you have received this in error please contact the sender and delete this message and any attachments from your computer system. We do not guarantee that this message or any attachment to it is secure or free from errors, computer viruses or other conditions that may damage or interfere with data, hardware or software.
